Once Quotes (4 quotes)
[Attributing the origin of life to spontaneous generation.] However improbable we regard this event, it will almost certainly happen at least once . The time is of the order of two billion years. Given so much time, the impossible becomes possible, the possible probable, and the probable virtually certain. One only has to wait: time itself performs the miracles.
A poet is, after all, a sort of scientist, but engaged in a qualitative science in which nothing is measurable. He lives with data that cannot be numbered, and his experiments can be done only once. The information in a poem is, by definition, not reproducible. ... He becomes an equivalent of scientist, in the act of examining and sorting the things popping in [to his head], finding the marks of remote similarity, points of distant relationship, tiny irregularities that indicate that this one is really the same as that one over there only more important. Gauging the fit, he can meticulously place pieces of the universe together, in geometric configurations that are as beautiful and balanced as crystals.
Nature tells every secret once.
The seeker after truth must, once in the course of his life, doubt everything, as far as is possible.