Famous quotes containing the words single and/or species:
“Many single parents say that they feel they have to be both a mother and a father to the child. This is impossible, so you may as well rule out that idea.... As a single parent, you cannot be both a man and a woman. Who you are is a parent.”
—Lawrence Balter (20th century)
“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)