That judges of important causes should hold office for life is a questionable thing, for the mind grows old as well as the body.

Inferiors revolt in order that they may be equal, and equals that they may be superior. Such is the state of mind which creates revolutions.

[this element], the seat of the appetites and of desire in general, does in a sense participate in principle, as being amenable and obedient to it

Friendship is two souls inhabiting one body.

Life is only meaningful when we are striving for a goal .

Happiness is something final and complete in itself, as being the aim and end of all practical activities whatever .... Happiness then we define as the active exercise of the mind in conformity with perfect goodness or virtue.

Happiness, then, is found to be something perfect and self-sufficient, being the end to which our actions are directed.