He who knows himself knows others.

True friendship is like sound health; the value of it is seldom known until it is lost.

Nothing more completely baffles one who is full of trick and duplicity himself, than straight forward and simple integrity in another.

The soundest argument will produce no more conviction in an empty head than the most superficial declamation; as a feather and a guinea fall with equal velocity in a vacuum.

The art of declamation has been sinking in value from the moment that speakers were foolish enough to publish, and hearers wise enough to read.

None are so fond of secrets as those who do not mean to keep them; such persons covet secrets as a spendthrift covets money, for the purpose of circulation.

Much may be done in those little shreds and patches of time which every day produces, and which most men throw away.

Let those who would affect singularity with success first determine to be very virtuous, and they will be sure to be very singular.

Atheism is a system which can communicate neither warmth nor illumination, except from those fagots which your mistaken zeal has lighted up for its destruction.

Deliberate with caution, but act with decision and yield with graciousness, or oppose with firmness.

The study of mathematics, like the Nile, begins in minuteness but ends in magnificence.

Too much time is wasted listening to the noise of the mind - and too little is spent living from the love and power of the heart.

People write for ego gratification, not money.

All things were together, infinite both in number and in smallness; for the small too was infinite.

Murder is an inherently evil act, no matter what the circumstances, no matter how convincing the rationalizations.

We cannot begin with complete doubt.

If I didn't have air supremacy, I wouldn't be here.

I speak because I can to anyone I trust enough to listen.

I'm going to make him an offer he can't refuse.

From cane reeds, sugar. From a worm's cocoon, silk. Be patient if you can, and from sour grapes will come something sweet.

Customers want good value, but they care more than ever how food and clothing products are made.