I, who have never willfully pained another, have no business to pain myself.

I seek the truth...it is only persistence in self-delusion and ignorance that does harm.

Our life is what our thoughts make it. Do every act of your life as if it were your last. In a word, your life is short. You must make the most of the present with the aid of reason and justice. Since it is possible that you may be quitting life this very moment, govern every act and thought accordingly.

The most complete revenge is not to imitate the aggressor.

Limit time to the present. Meditate upon your last hour.

How barbarous, to deny men the privilege of pursuing what they imagine to be their proper concerns and interests! Yet, in a sense, this is just what you are doing when you allow your indignation to rise at their wrongdoing; for after all, they are only following their own apparent concerns and interests. You say they are mistaken? Why then, tell them so, and explain it to them, instead of being indignant.

Everything is but what we think it.