In societies of low civilization, there is no money.

Science is organized knowledge.

The tyrant is nothing but a slave turned inside out.

Organs, faculties, powers, capacities, or whatever else we call them; grow by use and diminish from disuse, it is inferred that they will continue to do so. And if this inference is unquestionable, then is the one above deduced from it-that humanity must in the end become completely adapted to its conditions-unquestionable also. Progress, therefore, is not an accident, but a necessity.

The defects of the children mirror the defects of the parents.

Never educate a child to be a gentleman or lady alone, but to be a man, a woman.

When a man's knowledge is not in order, the more of it he has the greater will be his confusion.