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

There is only one good, knowledge, and one evil, ignorance.

Be as you wish to seem.

Wisdom is the daughter of experience.

Knowing yourself is the beginning of all wisdom.

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.

An honest man is always a child.

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