The dumbest people I know are those who know it all.

The question is not who is going to let me, it's who is going to stop me.

It's better to hang out with people better than you. Pick out associates whose behavior is better than yours and you'll drift in that direction.

Anyone who has never made a mistake has never tried anything new.

The greatest mistake you can make in life is to be continually fearing you will make one

The tragedy of life is not so much what men suffer, but rather what they miss.

I can't understand why people are frightened of new ideas. I'm frightened of the old ones.

Twenty years from now you will be more disappointed by the things that you didn't do than by the ones you did do. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore. Dream. Discover.

Life is long if you know how to use it.

One day you will wake up and there won't be any more time to do the things you've always wanted. Do it now.