There is always time to add a word, never to withdraw one.

Doubt is the origin of wisdom

A man who as a physical being is always turned toward the outside, thinking that his happiness lies outside him, finally turns inward and discovers that the source is within him.

Let there be spaces in your togetherness.

Intelligence is a moral category.

The difference between stupidity and genius is that genius has its limits.

Don't criticize what you can't understand.

You always admire what you really don't understand.

In order to change the world, you have to get your head together first

One who gains strength by overcoming obstacles possesses the only strength which can overcome adversity.

Knowing yourself is the beginning of all wisdom.

The best revenge is to be unlike him who performed the injury.

Let no man pull you low enough to hate him.

If you're happy, don't worry you'll get over it.

Act as if the maxim of your action were to become through your will a general natural law

In the midst of movement and chaos, keep stillness inside of you.

He who is slowest in making a promise is most faithful in its performance.

I don't like definitions, but if there is a definition of freedom, it would be when you have control over your reality to transform it, to change it, rather than having it imposed upon you. You can't really ask for more than that.

You can best serve civilization by being against what usually passes for it.

I think, therefore I am.

Don't raise your voice, improve your argument.