The true virtue of human beings is fitness to live together as equals; claiming nothing for themselves but what they as freely concede to everyone else; regarding command of any kind as an exceptional neccessity, and in all cases a temporary one.

Induction is a process of inference; it proceeds from the known to the unknown.

...to bring a child into existence without a fair prospect of being able, not only to provide food for its body, but instruction and training for its mind is a moral crime, both against the unfortunate offspring and against society

Education makes a man a more intelligent shoemaker, if that be his occupation, but not by teaching him how to make shoes; it does so by the mental exercise it gives, and the habits it impresses.

Among the facts of the universe to be accounted for, it may be said, is Mind; and it is self evident that nothing can have produced Mind but Mind.

It must be granted that in every syllogism, considered as an argument to prove the conclusion, there is a petitio principii. When we say, All men are mortal Socrates is a man therefore Socrates is mortal; it is unanswerably urged by the adversaries of the syllogistic theory, that the proposition, Socrates is mortal.

There is no 'one-size-fits-all' way to build an audience.