Famous quotes containing the words tree and/or species:
“Everyone who enjoys supposes that the tree was concerned with the fruit, but it was really concerned with the seed.—In this lies the difference between all those who create and those who enjoy.”
—Friedrich Nietzsche (1844–1900)
“The question that will decide our destiny is not whether we shall expand into space. It is: shall we be one species or a million? A million species will not exhaust the ecological niches that are awaiting the arrival of intelligence.”
—Freeman Dyson (b. 1923)