These will vary in every human being; but knowledge is the same for every mind, and every mind may and ought to be trained to receive it..

... so far from entrenching human conduct within the gentle barriers of peace and love, religion has ever been, and now is, the deepest source of con….

The knowledge of one generation is the ignorance of the next..

Moral truth, resting entirely upon the ascertained consequences of actions, supposes a process of observation and reasoning..

Opinions are not to be learned by rote, like the letters of an alphabet, or the words of a dictionary. They are conclusions to be formed, and formed ….

the mode of delivering a truth makes, for the most part, as much impression on the mind of the listener as the truth itself..

Trust me, there are as many ways of living as there are men, and one is no more fit to lead another, than a bird to lead a fish, or a fish a quadrupe….

Equality is the soul of liberty; there is, in fact, no liberty without it..

... a nation to be strong, must be united; to be united, must be equal in condition; to be equal in condition, must be similar inhabits and feeling; ….

it is not that religion is merely useless, it is mischievous. It is mischievous by its idle terrors; it is mischievous by its false morality; it is m….

Do not confound noise with fame. The man who is remembered, is not always honored..

Credulity is always a ridiculous, often a dangerous failing: it has made of many a clever man, a fool; and of many a good man, a knave..

Be not afraid! In admitting a creator, refuse not to examine his creation; and take not the assertions of creatures like yourselves, in place of the ….

Turn your churches into halls of science, and devote your leisure day to the study of your own bodies, the analysis of your own minds, and the examin….

All that I say is, examine, inquire. Look into the nature of things. Search out the grounds of your opinions, the for and against. Know why you belie….

Pets, like their owners, tend to expand a little over the Christmas period..

I am neither Jew nor Gentile, Mohammedan nor Theist; I am but a member of the human family, and would accept of truth by whomsoever offered -- that t….

What were the glories of the sun, if we knew not the gloom of darkness?.

Equality! Where is it, if not in education? Equal rights! They cannot exist without equality of instruction..

The world is full of religion, and full of misery and crime..

Religion may be defined thus: a belief in, and homage rendered to, existences unseen and causes unknown..