If I simply refrain from making a judgment in cases where I do not perceive the truth with sufficient clarity and distinctness, then it is clear that I am behaving correctly and avoiding error.

We do not describe the world we see, we see the world we can describe.

Whenever anyone has offended me, I try to raise my soul so high that the offense cannot reach it.

De omnibus dubitandum

Divide each difficulty into as many parts as is feasible and necessary to resolve it.

Conquer yourself rather than the world.

The reading of all good books is like a conversation with the finest minds of past centuries.

The chief cause of human errors is to be found in the prejudices picked up in childhood.

Doubt is the origin of wisdom

The only thing we have power over in the universe is our own thoughts.

How can you be certain that your whole life is not a dream?

We are random animals. That is who we are, and we have only ourselves, nothing more--there is no greater relationship.

How we live as leaders matters.

It is when the heavenly fire has departed and the soul is cool again that we discover the real quality of our will.

I must be made of nothing to feel so much nothing.

I'm a competitive bodybuilder; I'm not training just to be healthy. Ninety-five percent of the people training with weights are into this health thing, and it's a different mentality entirely.

I'm not going to lie. I am a psycho. Luckily, I get most of it out on stage.

I was exhausted. Fighting to save the universe will do that.

A simple rule, to be followed whether one is in the light or not, gives backbone to one's spiritual life, as nothing else can.

The laws of nature are written by the hand of God in the language of mathematics.

When I see the elaborate study and ingenuity displayed by women in the pursuit of trifles, I feel no doubt of their capacity for the most herculean undertakings.