"That is human nature, that people come after you, willingly enough, provided only that you no longer love or want them."
- A.S. Byatt
"The affinities of all the beings of the same class have sometimes been represented by a great tree.I believe this simile largely speaks the truth. The green and budding twigs may represent existing sp..."
- Charles Darwin
"As many more individuals of each species are born than can possibly survive; and as, consequently, there is a frequently recurring struggle for existence, it follows that any being, if it vary however..."