...The entire preoccupation of the physicist is with things that contain within themselves a principle of movement and rest.

Our actions determine our dispositions.

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

To write well, express yourself like the common people, but think like a wise man.

There is a cropping-time in the races of men, as in the fruits of the field; and sometimes, if the stock be good, there springs up for a time a succession of splendid men; and then comes a period of barrenness.

Our virtues are voluntary (and in fact we are in a sense ourselves partly the cause of our moral dispositions, and it is our having a certain character that makes us set up an end of a certain kind), it follows that our vices are voluntary also; they are voluntary in the same manner as our virtues.

Plato is dear to me, but dearer still is truth.