All the great things are simple, and many can be expressed in a single word: freedom; justice; honor; duty; mercy; hope.
If you don't want to slip up tomorrow, speak the truth today.
Science is organized knowledge. Wisdom is organized life.
To be one, to be united is a great thing. But to respect the right to be different is maybe even greater.
Boredom is the root of all evil - the despairing refusal to be oneself.
Throw your heart over the fence and the rest will follow.
It is easy to be brave at a safe distance.
It is man that makes truth great, not truth that makes man great.
Take care of the pieces well. The whole will take care of itself.
Proverbs are short sentences drawn from long experience.
It was a melancholy secret that reality can arouse desires but never satisfy them.
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self.
Be curious, not judgmental.
You don't become what you want, you become what you believe
If we know exactly where we're going, exactly how to get there, and exactly what we'll see along the way, we won't learn anything.
In any moment of decision, the best thing you can do is the right thing. The worst thing you can do is nothing.
Gravity is only the bark of wisdom's tree; but it preserves it
Thoughts without content are empty, intuitions without concepts are blind.
We thought that we had the answers, it was the questions we had wrong.
You are the bows from which your children as living arrows are sent forth.
And no one will listen to us until we listen to ourselves.