Money is a singular thing. It ranks with love as man's greatest source of joy. And with death as his greatest source of anxiety.

The only way to discover the limits of the possible is to go beyond them into the impossible.

The present state of the system of nature is evidently a consequence of what it was in the preceding moment, and if we conceive of an intelligence which at a given instant comprehends all the relations of the entities of this universe, it could state the respective positions, motions, and general effects of all these entities at any time in the past or future.