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.

Whatever helps to shape the human being - to make the individual what he is, or hinder him from being what he is not - is part of his education.

The cause, then, philosophically speaking, is the sum total of the conditions, positive and negative, taken together; the whole of the contingencies of every description, which being realized, the consequent invariably follows.

Those only are happy who have their minds fixed on some object other than their own happiness; on the happiness of others, on the improvement of mankind, even on some art or pursuit, followed not as a means, but as itself an ideal end. Aiming thus at something else, they find happiness by the way.

He who cannot by his labor suffice for his own support has no claim to the privilege of helping himself to the money of others. By becoming dependent on the remaining members of the community for actual subsistence, he abdicates his claim to equal rights for them I other respects.

No one can be a great thinker who does not recognize that as a thinker it is his first duty to follow his intellect to whatever conclusions it may lead.

In the long-run, the best proof of a good character is good actions.