“A man receives only what he is ready to receive, whether physically or intellectually or morally, as animals conceive at certain seasons their kind only. We hear and apprehend only what we already half know. If there is something which does not concern me, which is out of my line, which by experience or by genius my attention is not drawn to, however novel and remarkable it may be, if it is spoken, we hear it not, if it is written, we read it not, or if we read it, it does not detain us. Every man thus tracks himself through life, in all his hearing and reading and observation and traveling. His observations make a chain. The phenomenon or fact that cannot in any wise be linked with the rest which he has observed, he does not observe. By and by we may be ready to receive what we cannot receive now. I find, for example, in Aristotle some thing about the spawning, etc., of the pout and perch, because I know something about it already and have my attention aroused; but I do not discover till very late that he has made other equally important observations on the spawning of other fishes, because I am not interested in those fishes.”

“The fact to be remembered in considering... contact with [the] thought currents of others, is that we may decide the character of the thoughts that we shall receive by carefully observing the rule to think only along such lines as may be worthy of us, and which may tend to our betterment, strength, and advancement. In other words, we have the power to select our mental company.”

“A man's death makes everything certain about him. Of course, secrets may die with him. And of course, a hundred years later somebody looking through some papers may discover a fact which throws a totally different light on his life and of which all the people who attended his funeral were ignorant. Death changes the facts qualitatively but not quantitatively. One does not know more facts about a man because he is dead. But what one already knows hardens and becomes definite. We cannot hope for ambiguities to be clarified, we cannot hope for further change, we cannot hope for more. We are now the protagonists and we have to make up our minds.”

“Impossible, I realize, to enter another’s solitude. If it is true that we can ever come to know another human being, even to a small degree, it is only to the extent that he is willing to make himself known. A man will say: I am cold. Or else he will say nothing, and we will see him shivering. Either way, we will know that he is cold. But what of the man who says nothing and does not shiver? Where all is intractable, here all is hermetic and evasive, one can do no more than observe. But whether one can make sense of what he observes is another matter entirely”

“The decisive question for man is: Is he related to something infinite or not? That is the telling question of his life. Only if we know that the thing which truly matters is the infinite can we avoid fixing our interests upon futilities, and upon all kinds of goals which are not of real importance. Thus we demand that the world grant us recognition for qualities which we regard as personal possessions: our talent or our beauty. The more a man lays stress on false possessions, and the less sensitivity he has for what is essential, the less satisfying is his life. He feels limited because he has limited aims, and the result is envy and jealousy. If we understand and feel that here in this life we already have a link with the infinite, desires and attitudes change.”

“We hear and apprehend only what we already half know.”