"I think…from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved" - Charles Darwin
Darwin's Tree of Life. Drawing by Charles Darwin. I love the "I think" !
darwin "i think" - tattoo
This is probably my next tattoo - Darwin's Tree of Life
Darwin Tree of Life tattoo with watercolour background. Done at Manchester Ink, UK.
Charles Darwin's first tree
This is a tattoo of Darwin's first drawing of a phylogeny exactly how it appeared in his journal, including "I think". Awesome example of science-related ink :)
atheist tattoo darwin fish - Google Search
Darwin Origin of Species temporary tattoo More
Not the first person to get this, but here's Darwin's 1837 sketch of a phylogenetic tree. (By Walt at Nola Tattoo.)