Quote by Hugo de Vries

"Variation without selection is merely noise; selection without variation is stagnation."

Hugo de Vries
Botanist and Geneticist Dutch 1848–1935

More from Hugo de Vries

"Mutation is the only source of novelty in evolution"
"Nature does not proceed by leaps"
"The origin of species lies in the nature of variation"
"Evolution is a process of continuous change"

All quotes by Hugo de Vries