There is no upper limit to what individuals are capable of doing with their minds. There is no age limit that bars them from beginning. There is no obstacle that cannot be overcome if they persist and believe.
While there is a chance of the world getting through its troubles, I hold that a reasonable man has to behave as though he were sure of it. If at the end your cheerfulness in not justified, at any rate you will have been cheerful.
I went over the heads of the things a man reckons desirable. No doubt invisibility made it possible to get them, but it made it impossible to enjoy them when they are got.
If I am recalling an incident very vividly I go back to the instant of its occurrence; I become absent minded, as you say. I jump back for a moment. Of course we have no means of staying back for any length of time any more than a savage or an animal has of staying six feet above the ground. But a civilized man is better off than the savage in this respect. He can go up against gravitation in a balloon, and why should we not hope that ultimately he may be able to stop or accelerate his drift along the Time Dimension; or even to turn about and travel the other way?
It is a law of nature we overlook, that intellectual versatility is the compensation for change, danger, and trouble. An animal perfectly in harmony with its environment is a perfect mechanism. Nature never appeals to intelligence until habit and instinct are useless. There is no intelligence where there is no change and no need of change. Only those animals partake of intelligence that have a huge variety of needs and dangers.
And I have by me, for my comfort, two strange white flowers - shriveled now, and brown and flat and brittle - to witness that even when mind and strength had gone, gratitude and a mutual tenderness still lived on in the heart of men.
There was a time when I believed in the story and the scheme of salvation, so far as I could understand it, just as I believed there was a Devil... Suddenly the light broke through to me and I knew this God was a lie... For indeed it is a silly story, and each generation nowadays swallows it with greater difficulty... Why do people go on pretending about this Christianity?
I doubt if these two fine, active minds [President and Mrs. Roosevelt] have ever inquiried how it is they know what they know and think as they do. Nor have they ever thought of what they might have been if they had grown up in an entirely different culture. They have the disposition of all politicians world over to deal only with made opinion. They have never inquired how it is that opinion is made.
I see knowledge increasing and human power increasing, I see everincreasing possibilities before life, and I see no limits set to it all. Existence impresses me as a perpetual dawn. Our lives, as I apprehend them, swim in expectation.