For often, when one is asleep, there is something in consciousness which declares that what then presents itself is but a dream.

Happiness is a state of activity.

If they do not share equally enjoyments and toils, those who labor much and get little will necessarily complain of those who labor little and receive or consume much. But indeed there is always a difficulty in men living together and having all human relations in common, but especially in their having common property.

The business of every art is to bring something into existence, and the practice of an art involves the study of how to bring into existence something which is capable of having such an existence and has its efficient cause in the maker and not in itself.

All communication must lead to change

Our account does not rob the mathematicians of their science... In point of fact they do not need the infinite and do not use it.

Excellence is an art won by training and habituation.