“We have joined the caravan, you might say, at a certain point; we will travel as far as we can, but we cannot in a lifetime see all that we would like to see or learn all that we hunger to know.”

“The journey is difficult, immense. We will travel as far as we can, but we cannot in one lifetime see all that we would like to see or to learn all that we hunger to know.”

“Great minds have always seen it. That is why man has survived his journey this long. When we fail to wish any longer to be otherwise than what we are, we will have ceased to evolve. Evolution has to be lived forward. I say this as one who has stood above the bones of much that has vanished, and at midnight has examined his own face.”

“If it should turn out that we have mishandled our own lives as several civilizations before us have done, it seems a pity that we should involve the violet and the tree frog in our departure.”

“Every time we walk along a beach some ancient urge disturbs us so that we find ourselves shedding shoes and garments or scavenging among seaweed and whitened timbers like the homesick refugees of a long war.”

“We are one of many appearances of the thing called Life; we are not its perfect image, for it has no perfect image except Life, and life is multitudinous and emergent in the stream of time.”

“As we passed under a streetlamp I noticed, beside my own bobbing shadow, another great, leaping grotesquerie that had an uncanny suggestion of the frog world about it . . . judging from the shadow, it was soaring higher and more gaily than myself.'Very well,' you will say, 'Why didn’t you turn around. That would be the scientific thing to do.'But let me tell you it is not done ― not on an empty road at midnight.”