If it's time for you to go, leave willingly - as you would to accomplish anything that can be done with grace and honor.

Be tolerant with others and strict with yourself.

If someone can prove me wrong and show me my mistake in any thought or action, I shall gladly change. I seek the truth, which never harmed anyone: the harm is to persist in one's own self-deception and ignorance.

We are born for cooperation, as are the feet, the hands, the eyelids, and the upper and lower jaws.

The wrongdoer is often the person who left something undone, rather than the person who has done something

A noble man compares and estimates himself by an idea which is higher than himself; and a mean man, by one lower than himself. The one produces aspiration; the other ambition, which is the way in which a vulgar man aspires.

For a man can lose neither the past nor the future; for how can one take from him that which is not his? So remember these two points: first, that each thing is of like form from everlasting and comes round again in its cycle, and that it signifies not whether a man shall look upon the same things for a hundred years or two hundred, or for an infinity of time; second, that the longest lived and the shortest lived man, when they come to die, lose one and the same thing.