Freedom is not worth having if it does not include the freedom to make mistakes.

It is unwise to be too sure of one's own wisdom. It is healthy to be reminded that the strongest might weaken and the wisest might err.

Freedom is not worth having if it does not connote freedom to err.

You must not lose faith in humanity. Humanity is like an ocean; if a few drops of the ocean are dirty, the ocean does not become dirty.

The greatness of humanity is not in being human, but in being humane.

The greatness of a nation and its moral progress can be judged by the way in which its animals are treated.