Never interrupt your enemy when he is making a mistake. (Napoleon Bonaparte)

Life is pleasant.Death is peaceful.It’s the transition that’s troublesome. (Isaac Asimov)

Against stupidity, the gods themselves contend in vain. (Friedrich von Schiller)

Dancing is silent poetry. (Simonides)

It’s kind of fun to do the impossible. (Walt Disney)

Each problem that I solved became a rule which served afterwards to solve other problems. (Rene Descartes, Discours de la Methode)

It is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring. (Carl Sagan)

I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use. (Galileo Galilei)

If a man does his best, what else is there? (General George S. Patton)

If you are going through hell, keep going. (Sir Winston Churchill)

A mathematician is a device for turning coffee into theorems. (Paul Erdos)