Gullibility creates trust in things that are not worthy of trust.

Looks like slavery was in always in the human DNA. Why else do we find people subduing others and others willing to slog for their masters?

The things I want to know are in books; my best friend is the man who'll get me a book I didn't read.

Work is undoubtedly worship but laughter is life. Anyone who takes life too seriously must prepare himself for a miserable existence. Anyone who greets joy and sorrows with equal facility can really get the best of life.

If we knew what it was we were doing, it would not be called research, would it?

If you want to increase your success rate, double your failure rate. 

Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment.

History is more or less bunk.  

Strange logic is the product of misplaced intelligence.

Open your eyes, look within. Are you satisfied with the life you're living?

It ain't as bad as you think. It will look better in the morning.

Technological progress is like an axe in the hands of a pathological criminal.