Who said "The study of nature is the study of ourselves"?

This quote is attributed to Hugo de Vries.

The study of nature is the study of ourselves - Hugo de Vries

"The study of nature is the study of ourselves"

Hugo de Vries Nature

Botanist and Geneticist Dutch 1848–1935

"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"

"Nature teaches us about beauty."

"Nature teaches us patience and wisdom"

"Sometimes it snows in April."

"Every town has a soul, and Twin Peaks has a troubled one."