Aside from a cold appreciation of my own genius I felt that I was a modest man.

If I had found out anything, it was that they could print it faster than I could study it.

Spacemen - men who work in space, pilots and jetmen and astrogators and such - are men who like a few million miles of elbow room.

Cheops' Law: Nothing ever gets built on schedule or within budget.

Ignorance is curable, stupid is forever.

Butterflies are self propelled flowers.

A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.