To Have Doubted One's Own First Principles

Every Calling Is Great When Greatly Pursued.

Three Generations Of Imbeciles Are Enough.

I Think It Not Improbable That Man, Like The Grub That Prepares A Chamber For The Winged Thing It Never Has Seen But Is To Be - That Man May Have Cosmic Destinies That He Does Not Understand.

From Forty To Fifty A Man Must Move Upward, Or The Natural Falling Off In The Vigor Of Life Will Carry Him Rapidly Downward.

Every Idea Is An Incitement. It Offers Itself For Belief, And If Believed It Is Acted On Unless Some Other Belief Outweighs It Or Some Failure Of Energy Stifles The Movement At Its Birth. The Only Difference Between The Expression Of An Opinion And An Incitement Is The Speaker's Enthusiasm For The Result.