Secrecy is the soul of all great designs. Perhaps more has been effected by concealing our own intentions than by discovering those of our enemy.

Afflictions sent by providence melt the constancy of the noble minded, but confirm the obduracy of the vile, as the same furnace that liquefies the gold, hardens the clay Charles Caleb Colton.

To be satisfied with the acquittal of the world, though accompanied with the secret condemnation of conscience, this is the mark of a little mind; but it requires a soul of no common stamp to be satisfied with its own acquittal, and to despise the condemnation of the world.

Mystery magnifies danger as the fog the sun.

We should choose our books as we would our companions, for their sterling and intrinsic merit.

What would you do if you knew for sure that no one would ever find out?

Nothing more completely baffles one who is full of trick and duplicity than straigthforward and simple integrity in another. A knave would rather quarrel with a brother knave than with a fool, but he would rather avoid a quarrel with one honest man than with both. He can combat a fool by management and address, and he can conquer a knave by temptations. But the honest man is neither to be bamboozled nor bribed.