It's Not By Amusing Oneself That One

Ignorance And Error Are Necessary To Life, Like Bread And Water.

Innocence Most Often Is A Good Fortune And Not A Virtue.

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.

Nine Tenths Of Education Is Encouragement.

For A Man’s Life Would Become Intolerable, If He Knew What Was Going To Happen To Him. He Would Be Made Aware Of Future Evils, And Would Suffer Their Agonies In Advance, While He Would Get No Joy Of Present Blessings Since He Would Know How They Would End. Ignorance Is The Necessary Condition Of Human Happiness, And It Has To Be Admitted That On The Whole Mankind Observes That Condition Well. We Are Almost Entirely Ignorant Of Ourselves; Absolutely Of Others. In Ignorance, We Find Our Bliss; In Illusions, Our Happiness.