To snatch the passing moment and examine it for signs of eternity is the noblest of occupations.

The revolt against freedom, which can be traced back so far, is associated with a revolt against reason that [gives] sentiment primacy to evaluate actions and experiences according to the subjective emotions with which they are associated.

If what is best in mankind, and what its progress depends on, manifests itself primarily in the individual and only secondarily in the mass, then our objectives should be to maintain such freedom as allows the individual to think and speak for himself.

Faith is one of those words that connotes, however irrationally, some kind of virtue in itself.

The prospective colonization of space responds, not to the particular problems of the American nation, or of any other nation, but to those of mankind as a whole... In an ideal view, such an undertaking by mankind as a whole would tend to divert it from its present preoccupation with international conflict, would tend to channel its energies into the pursuit of a great common purpose.

It is the nature of slavery to render its victims so abject that at last, fearing to be free, they multiply their own chains. You can liberate a freeman, but you cannot liberate a slave.

For a few ticks of the clock I am here, uncomprehending, attempting to make some record or memorial of this eternal passage, like a traveler in a strange country through which he is being hurried on a schedule not of his making and for a purpose he does not understand.