Only two things are infinite, the universe and human stupidity, and I’m not sure about the former. (Albert Einstein)

The true measure of a man is how he treats someone who can do him absolutely no good. (Samuel Johnson)

When one person suffers from a delusion it is called insanity; when many people suffer from a delusion it is called religion. (Robert Pirsig)

I’m living so far beyond my income that we may almost be said to be living apart. (E. E. Cummings)

Human history becomes more and more a race between education and catastrophe. (H. G. Wells)

The power of accurate observation is frequently called cynicism by those who don’t have it. (George Bernard Shaw)

Give me chastity and continence, but not yet. (Saint Augustine)

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

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

Try to learn something about everything and everything about something. (Thomas Henry Huxley)

The difference between ‘involvement’ and ‘commitment’ is like an eggs-and-ham breakfast: the chicken was ‘involved’ – the pig was ‘committed’. (unknown)

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)

I’ve had a wonderful time, but this wasn’t it. (Groucho Marx)