“God is known by nature in his works, and by doctrine in his revealed word.”

You cannot teach a person something he does not already know, you can only bring what he does know to his awareness.

The laws of nature are written by the hand of God in the language of mathematics.

Being infinitely amazed, so do I give thanks to God, Who has been pleased to make me the first observer of marvelous things, unrevealed to bygone ages.

The increase of known truths stimulates the investigation, establishment, and growth of the arts.

Where the senses fail us, reason must step in.

The vain presumption of understanding everything can have no other basis than never having understood anything.

You may force me to say what you wish; you may revile me for saying what I do. But it moves.

See now the power of truth.

In my studies of astronomy and philosophy I hold this opinion about the universe, that the Sun remains fixed in the centre of the circle of heavenly bodies, without changing its place; and the Earth, turning upon itself, moves round the Sun.

Who would dare assert that we know all there is to be known?

It is surely harmful to souls to make it a heresy to believe what is proved.

Knowing thyself, that is the greatest wisdom.

Philosophy is written in that great book which ever lies before our eyes. I mean the universe, but we cannot understand it if we do not first learn the language and grasp the symbols, in which it is written.

The nature of the human mind is such that unless it is stimulated by images of things acting upon it from without, all remembrance of them passes easily away.

We cannot teach people anything; we can only help them discover it within themselves.

Holy Scripture could never lie or err…its decrees are of absolute and inviolable truth.

Doctrine tied itself into infinite knots over the realities of sex.

Would I describe a preacher, I would express him simple, grave, sincere; In doctrine uncorrupt; in language plain, And plain in manner; decent, solemn, chaste,

Since they were saved by sheer grace, not by their perfect doctrine or strong moral character.

The gold standard makes the money’s purchasing power independent of the changing, ambitions and doctrines of political parties and pressure groups. This is not a defect of the gold standard; it is its main excellence.

I venerate the man whose heart is warm, Whose hands are pure, whose doctrine and whose life, Coincident, exhibit lucid proof That he is honest in the sacred cause.

Fascism is definitely and absolutely opposed to the doctrines of liberalism, both in the political and economic sphere.

It has now become the doctrine of a large clan of politicians that political honesty is unnecessary, slow, subversive of a man’s interests, and incompatible with quick onward movement.

One of the chief peculiarities of this treatise is the doctrine that the true electric current, on which the electromagnetic phenomena depend, is not the same thing as the current of conduction, but that the time-variation of the electric displacement must [also] be taken into account.