“Reason obeys itself; and ignorance submits to whatever is dictated to it.”

Those who expect to reap the blessings of freedom must, like men, undergo the fatigue of supporting it.

Every person of learning is finally his own teacher.

Those who expect to reap the blessing of freedom must undertake to support it.

Reputation is what men and women think of us; character is what God and angels know of us.

When extraordinary power and extraordinary pay are allotted to any individual in a government, he becomes the center, round which every kind of corruption generates and forms.

A long habit of not thinking a thing wrong, gives it a superficial appearance of being right, and raises at first a formidable outcry in defense of custom. But the tumult soon subsides. Time makes more converts than reason.

Practical religion consists in doing good: and the only way of serving God is that of endeavoring to make His creation happy. All preaching that has not this for its object is nonsense and hypocrisy.

To argue with a person who has renounced the use of reason is like administering medicine to the dead.

Freedom had been hunted round the globe; reason was considered as rebellion; and the slavery of fear had made men afraid to think. But such is the irresistible nature of truth, that all it asks, and all it wants, is the liberty of appearing.

There are two distinct classes of men – those who pay taxes and those who receive and live upon taxes.

It is error only, and not truth, that shrinks from inquiry.

We repose an unwise confidence in any government, or in any men, when we invest them officially with too much, or an unnecessary quantity of, discretionary power.

It is the duty of every man, as far as his ability extends, to detect and expose delusion and error.

Reason and Ignorance, the opposites of each other, influence the great bulk of mankind. If either of these can be rendered sufficiently extensive in a country, the machinery of Government goes easily on. Reason obeys itself; and Ignorance submits to whatever is dictated to it.

To argue with a man who has renounced the use and authority of reason, and whose philosophy consists in holding humanity in contempt, is like administering medicine to the dead, or endeavoring to convert an atheist by scripture.

Moderation in temper is always a virtue; but moderation in principle is always a vice.

When a man is perfect, he sees perfection in others. When he sees imperfection, it is his own mind projecting itself.

Youth ages, immaturity is outgrown, ignorance can be educated, and drunkenness sobered, but stupid lasts forever.

Ignorance can be cured, but stupidity is forever.

Flatter me, and I may not believe you. Criticize me, and I may not like you. Ignore me, and I may not forgive you. Encourage me, and I will not forget you. Love me and I may be forced to love you.

All the evils that men cause to each other because of certain desires, or opinions or religious principles, are rooted in ignorance. [All hatred would come to an end] when the earth was flooded with the knowledge of God.

A person is never happy except at the price of some ignorance.

What you don’t know has power over you; knowing it brings it under your control, and makes it subject to your choice. Ignorance makes real choice impossible.

Extremism thrives amid ignorance and anger, intimidation and cowardice.