Mathematics is written for mathematicians.

To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.

Every light has its shadow, and every shadow hath a succeeding morning.

Of all things visible, the highest is the heaven of the fixed stars.

For I am not so enamoured of my own opinions that I disregard what others may think of them.

The Universe, wrought for us by a supremely good and orderly Creator.

Nations are not ruined by one act of violence, but gradually and in an almost imperceptible manner by the depreciation of their circulating currency, through its excessive quantity.

Finally we shall place the Sun himself at the center of the Universe.

Those things which I am saying now may be obscure, yet they will be made clearer in their proper place.

The massive bulk of the earth does indeed shrink to insignificance in comparison with the size of the heavens.

I am aware that a philosopher's ideas are not subject to the judgment of ordinary persons, because it is his endeavour to seek the truth in all things, to the extent permitted to human reason by God.

The measure of your greatness is not by the narrowness of your beliefs, but by the broadness of your vision.

When death is the ultimate destination for all of us, why are we not enjoying our lives?

A blind man sees with his cane, like all the rest of us.

Business as usual will not be accepted by any part of this city.

You are either in the Word and the Word is conforming you to the image of Jesus Christ, or you are in the world and the world is squeezing you into its mold.

If you are aware of your humility, then you are arrogant.

The manager could not even talk to us at the interval. He said we were bad.

Those who condemn the immorality of liberal capitalism do so in comparison with a society of saints that has never existed—and never will

The boy smiled -- mostly at Amy. "Sorry, her heart belongs to Ian Kabra," Dan said, except that something in her expression made him realize her heart didn't belong at all to Ian right now.

That's the great thing about doing good: Anyone can do it, any time, no waiting periods or batteries required.