A man's character may be learned from the adjectives which he habitually uses in conversation.

A person who never made a mistake never tried anything new.

If I have seen farther than others, it is because I was standing on the shoulders of giants.

If you can't stand the heat, get out of the kitchen.

If you're going through hell, keep going.

The buck stops here!

The nation that destroys its soil destroys itself.

The only thing we have to fear is fear itself.

The pessimist sees difficulty in every opportunity. The optimist sees the opportunity in every difficulty.