History does not repeat itself except in the minds of those who do not know history.

The true wealth of a nation lies not in it's gold or silver but in it's learning, wisdom and in the uprightness of its sons.

He who has not looked on Sorrow will never see Joy. [for without sorrow how would you know what joy is? Contrast provides peceptive clarity]

You shall not dwell in tombs made by the dead for the living.

Doubt is a pain too lonely to know that faith is his twin brother. Doubt is a foundling unhappy and astray, and though his own mother who gave him birth should find him and enfold him, he would withdraw in caution and in fear.

He who does not seek advice is a fool. His folly blinds him to Truth and makes him evil, stubborn, and a danger to his fellow man.

You may chain my hands, you may shackle my feet; you may even throw me into a dark prison; but you shall not enslave my thinking, because it is free!