To know that you do not know and to be willing to admit that you do not know without sheepishly apologizing is real strength and sets the stage for learning and progress in any endeavor.

If you see anybody wail and complain, call him a slave, though he be clad in purple.

Once you know who you are and to whom you are linked, you will know what to do

Each man's life is a kind of campaign, and a long and complicated one at that. You have to maintain the character of a soldier, and do each separate act at the bidding of the General.

In a word, neither death, nor exile, nor pain, nor anything of this kind is the real cause of our doing or not doing any action, but our inward opinions and principles.

Any person capable of angering you becomes your master; he can anger you only when you permit yourself to be disturbed by him.

Preach not to others what they should eat, but eat as becomes you and be silent.