Dignity does not consist in possessing honors, but in deserving them.

Education is the best provision for old age.

The shape of the heaven is of necessity spherical; for that is the shape most appropriate to its substance and also by nature primary.

For it is owing to their wonder that men both now begin and at first began to philosophize... They were pursuing science in order to know, and not for any utilitarian end.

And what has come to prevail in democracies is the very reverse of beneficial, in those, that is, which are regarded as the most democratically run. The reason for this lies in the failure properly to define liberty. For there are two marks by which democracy is thought to be defined: "sovereignty of the majority" and "liberty." "Just" is equated with what is equal, and the decision of the majority as to what is equal is regarded as sovereign; and liberty is seen in terms of doing what one wants.

Reason is a light that God has kindled in the soul.

Health is a matter of choice, not a mystery of chance