Some persons hold that, while it is proper for the lawgiver to encourage and exhort men to virtue on moral grounds, in the expectation that those who have had a virtuous moral upbringing will respond, yet he is bound to impose chastisement and penalties on the disobedient and ill-conditioned, and to banish the incorrigible out of the state altogether. For (they argue) although the virtuous man, who guides his life by moral ideals, will be obedient to reason, the base, whose desires are fixed on pleasure, must be chastised by pain, like a beast of burden.

We are the sum of our actions, and therefore our habits make all the difference.

Intuition is the source of scientific knowledge.

Here and elsewhere we shall not obtain the best insight into things until we actually see them growing from the beginning.

...happiness is an activity and a complete utilization of virtue, not conditionally but absolutely.

All are agreed that the various moral qualities are in a sense bestowed by nature: we are just, and capable of temperance, and brave, and possessed of the other virtues from the moment of our birth. But nevertheless we expect to find that true goodness is something different, and that the virtues in the true sense come to belong to us in another way. For even children and wild animals possess the natural dispositions, yet without Intelligence these may manifestly be harmful.

It is the active exercise of our faculties in conformity with virtue that causes happiness, and the opposite activities its opposite.