“The known is finite, the unknown infinite; intellectually we stand on an islet in the midst of an illimitable ocean of inexplicability. Our business in every generation is to reclaim a little more land, to add something to the extent and the solidity of our possessions. And even a cursory glance at the history of the biological sciences during the last quarter of a century is sufficient to justify the assertion, that the most potent instrument for the extension of the realm of natural knowledge which has come into men’s hands, since the publication of Newton’s ‘Principia’, is Darwin’s ‘Origin of Species.”

“What I currently have are the resources that allow me to obtain what I don’t. Therefore, to forget what I ‘do have’ in the pursuit of what I ‘don’t’ is to insure that whatever I don’t have, I won’t have.”

“The happiest people are not those who have the most, but those who are the most grateful for what they have.”

“The more material we lose, the less we have. The less we have, the more we win.”

“Do we take less pride in the possession of our home because its walls were built by some unknown carpenter, its tapestries woven by some unknown weaver on a far Oriental shore, in some antique time? No. We show our home to our friends with the pride as if it were our home, which it is. Why then should we take less pride when reading a book written by some long-dead author? Is it not our book just as much, or even more so, than theirs? So the landowner says, ‘Look at my beautiful home! Isn’t it fine?’ And not, ‘Look at the home so-and-so has built.’ Thus we shouldn’t cry, ‘Look what so-and-so has written. What a genius so-and-so is!’ But rather, ‘Look at what I have read! Am I not a genius? Have I not invented these pages? The walls of this universe, did I not build? The souls of these characters, did I not weave?”