It isn't what we don't know that gives us trouble, it's what we know that ain't so

American invents everything, but the trouble is we get tired of it the minute the new is wore off

My approach to life can't be summed up in a pithy quote, and if yours can, you're in trouble.

The trouble with most people is that they think with their hopes and fears rather than with their minds.

The trouble with the dictionary is that you have to know how a word is spelled before you can look it up to see how it is spelled.

Science gives us knowledge, but only philosophy can give us wisdom