The secret of change is to focus all of your energy, not on fighting the old, but on building the new.

Be as you wish to seem.

The more I see, the less I know for sure.

Wisdom is the daughter of experience.

It's not what you are that holds you back, it's what you think you are not.

Death may be the greatest of all human blessings.

There's no one thing that's true. It's all true.

The most important knowledge is that which guides the way you lead your life.

I cannot teach anybody anything. I can only make them think.