"Never confuse motion with action." [Benjamin Franklin]

"Reality is that which, when you stop believing in it, doesn't go away." [Philip K. Dick, author]

"We don't see things as they are, we see them as we are." [Anais Nin]

"It is health that is real wealth, and not pieces of gold and silver." [Mahatma Gandhi]

"One can be ignorant without being bigoted, but one can't be bigoted without being ignorant." [Dale Robert Greenley, microbiologist, b. 1946]

"Don't be yourself. Be someone a little nicer." [Mignon McLaughlin, US journalist and author, 1913-1983]

"Give me but one firm spot on which to stand, and I will move the earth." [Archimedes]

Happy Teachers' Day to educators in Spain!

"One does not see with the eyes; one sees with the brain, which has dozens of different systems for analyzing the input from the eyes." [Oliver Sacks, neurologist, naturalist, historian of science, and author, 1933-2015]

5 Subjects Not Taught In School (But They Should Be) https://stemreadings.wordpress.com/2013/06/22/5-subjects-not-taught-in-school-but-they-should-be/ (by Edudemic)

"Science does correct itself and that's the reason why science is such a glorious thing for our species." [Nigel Calder, science writer, 1931-2014]

"Violence finds its only refuge in falsehood, falsehood its only support in violence. Any man who has once acclaimed violence as his method must inexorably choose falsehood as his principle." [Aleksandr Solzhenitsyn, novelist, Nobel laureate, 1918-2008]

Learn how Binomial Theorem works using these interactives: https://www.intmath.com/series-binomial-theorem/4-binomial-theorem.php

"It must be pointed out time and again that the exclusion of a large part of the colored population from active civil rights by the common practices is a slap in the face of the Constitution of the nation." [Einstein, in a 1946 address]

"Act so as to elicit the best in others and thereby in yourself (the supreme ethical rule)." [Felix Adler]

"Eighty percent of success is showing up." [Woody Allen]

Indians are 10 times more likely to get heart disease than Chinese or Malays (in Singapore). Mutton is a factor.

"You don't have to burn books to destroy a culture. Just get people to stop reading them." [Ray Bradbury]

"There is separation of colored people from white people in the United States. That separation is not a disease of colored people. It is a disease of white people. I do not intend to be quiet about it." [Einstein, Lincoln University commencement speech, 1946]

Happy Teachers' Day to educators in Indonesia!

"If I'm going to push my students toward their dream and their purpose in life, I've got to get to know who they are." [Linda Cliott-Wayman, former principal with reputation for turning around struggling schools]

"A single death is a tragedy. A million deaths is a statistic." [Joseph Stalin]

"Failure is another steppingstone to greatness." [Oprah Winfrey]

"Everything you add to the truth subtracts from the truth." [Alexander Solzhenitsyn, novelist]

Current world population (live) https://www.intmath.com/exponential-logarithmic-functions/world-population-live.php Also see what growth was like in times past and future.

Happy Teachers' Day to educators in Turkey!

How to find velocity and acceleration as a car goes around a curve? Curvilinear motion, application of calculus: http://intmath.com/curvi

"I am a firm believer in luck, I find the harder I work the more of it I have." [Thomas Jefferson + others]

In life lots of people know what to do, but few people actually do what they know. Knowing is not enough! You must take action. [T Robbins]

"People won't care about how much you know until they know how much you care!" [Anon]

"Mathematics is the science of what is clear by itself." [Carl Jacobi]

"Men never do evil so completely and cheerfully as when they do it from religious conviction." [Blaise Pascal, French mathematician, physicist, inventor, philosopher, writer and Catholic theologian, 1623-1662]

"The difference between a successful person and others is not a lack of strength nor knowledge, but rather a lack of will." [V. Lombardi]

"We may regard the present state of the universe as the effect of its past and the cause of its future. [If one] knows all forces that set nature in motion, and all positions of all items, ... then the future just like the past would be present before one's eyes." [Laplace]

A hypotenuse is the longest side of a right triangle.

"Do the difficult things while they are easy and do the great things while they are small." [Lao Tzu]

"A couple of months in the laboratory can save a couple of hours in the library." [F. H. Westheimer]

Happy Teachers' Day to educators in Costa Rica!

"What would life be without arithmetic, but a scene of horrors." [Sydney Smith, English wit, writer, and Anglican cleric, 1771 – 1845]

"If I feel unhappy, I do mathematics to become happy. If I am happy, I do mathematics to keep happy." [Alfred Renyi]

"Do unto those downstream as you would have those upstream do unto you." [Wendell Berry]

Online computer algebra system: https://calcme.com/a by WIRIS. Also does 2D and 3D graphs, and you can save to PDF too.

This is utterly outrageous by the Group of Eight unis, and deeply insulting and undermining for environment and climate experts trying their hardest to achieve a more sustainable future for society. Shameful stuff.

"God is a circle whose center is everywhere and circumference nowhere." [Voltaire, philosopher, born this day 21 Nov 1694-1778]

Happy Teachers' Day to educators in Somalia!

A story to stimulate math: https://www.intmath.com/series-binomial-theorem/series-introduction.php

"Whoever despises the high wisdom of mathematics nourishes himself on delusion." [Leonardo da Vinci]

"The best time to plant a tree was 20 years ago. The second best time is now." [Chinese proverb]

"No knowledge can be certain if it is not based upon mathematics or upon some other knowledge which is itself based upon math." [da Vinci]

Happy birthday to Edwin Hubble (b 20 Nov 1889, died 1953). Discovered galaxies beyond Milky Way and support for Big Bang.