No man is disturbed by things, but by his opinion about things.

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.

The soul that companies with virtue is like an ever-flowing source. It is a pure, clear, and wholesome draught, sweet, rich and generous of its store, that injures not, neither destroys.

What is it that every man seeks? To be secure, to be happy, to do what he pleases without restraint and without compulsion.

Any person capable of angering you becomes your master.

Desire and happiness cannot live together.

It is not a demonstration of kindness or friendship to the people we care about to join them in indulging in wrongheaded, negative feelings. We do a better service to ourselves and others by remaining detached and avoiding melodramatic reactions.