“What if you love knowledge for its own sake, not necessarily as a blueprint to action? What if you wish there were more, not fewer reflective types in the world?”

“Don't wish it were easier, wish you were better. Don't wish for fewer problems, wish for more skills. Don't wish for less challenges, wish for more wisdom.”

“What you think in your own mind to be good, or what people of the world think is good, is not necessarily good.”

“Some came for sheer love of adventure and wanted no reward beyond that; some wanted fame or its counterfeit, publicity; some were mercenary and thought primarily in terms of what they were going to get out of it; and lastly there was that small group, the like of which gives character to any expedition of merit -- not necessarily scientists at all, but men who could understand the lure, if not the love, of knowledge for its own sake; men who came not for position or money but who found full reward for their effort in the pursuit of an ideal.”

“The world is a great mirror. It reflects back to you what you are. If you are loving, if you are friendly, if you are helpful, the world will prove loving and friendly and helpful to you. The world is what you are.”

“It's where we're nearest to our humanness. Useless knowledge for its own sake. Useful knowledge is good, too, but it's for the faint-hearted, an elaboration of the real thing, which is only to shine some light, it doesn't matter where on what, it's the light itself, against the darkness, it's what's left of God's purpose when you take away God.”