I regret nothing. The one who regrets what they have done is doubly miserable.
If you do not want to repeat the past, study it.
Only that which exists out of the needs of its own nature and whose actions originate exclusively within itself is free.
Understanding is the beginning of approval.
Experience has shown us that there is nothing more difficult for a person to master than their own language.
Peace is not the absence of war, it is a virtue, a state of mind, a disposition for benevolence, trust, and justice.
The most important activity that a human being can achieve is to learn to understand, because to understand is to be free.