It's Not By Amusing Oneself

What Men Call Civilization Is The Condition Of Present Customs; What They Call Barbarism, The Condition Of Past Ones.

Distrust Even Mathematics; Albeit So Sublime And Highly Perfected, We Have Here A Machine Of Such Delicacy It Can Only Work In Vacuo, And One Grain Of Sand In The Wheels Is Enough To Put Everything Out Of Gear. One Shudders To Think To What Disaster Such A Grain Of Sand May Bring A Mathematical Brain. Remember Pascal.

The Whole Art Of Teaching Is Only The Art Of Awakening The Natural Curiosity Of Young Minds For The Purpose Of Satisfying It Afterwards.

There Are No Bad Books Any More Than There Are Ugly Women.

It's Not By Amusing Oneself That One Learns.