Illusion and self-deception stand in the way of an honest, penetrating and fearless self-appraisal. Though it would appear that we have access to the innermost core of our individual being, and that there is nothing in the world with which we are on more intimate terms than our own self, the self remains an elusive object of knowledge and understanding.
Desire for knowledge is the path of honor: desire for wealth is the path of dishonor. Wealth is the chain that slaves wear; knowledge the kingly crown.
Through zeal knowledge is gotten, through lack of zeal knowledge is lost; let a man who knows this double path of gain and loss thus place himself that knowledge may grow.
There is no knowledge for which so great a price is paid as a knowledge of the world; and no one ever became an adept in it except at the expense of a hardened or a wounded heart.
Whatever study tends neither directly nor indirectly to make us better men and citizens is at best a specious an ingenious sort of idleness; and the knowledge we acquire by it only a credible kind of ignorance, nothing more.
I am not collecting my knowledge from letters and books, but I have it within my own Self; because heaven and earth with all their inhabitants, and moreover God himself, is in man.