Famous quotes containing the words species and/or exchanged:
“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)
“We have exchanged the Washingtonian dignity for the Jeffersonian simplicity, which in due time came to be only another name for the Jacksonian vulgarity.”
—Henry Codman Potter (1835–1908)