Jan Swammerdam
A pioneer in microscopy who made detailed observations of insects, discovering metamorphosis and challenging spontaneous generation.
Most quoted
"The metamorphosis of insects is a clear demonstration of the divine power and wisdom, for from a seemingly insignificant worm, a beautiful creature emerges."
— from Historia Insectorum Generalis, 1669
"Herein is revealed the providence of God, that in the smallest and most contemptible creatures, as in the largest, the same wisdom and power are displayed."
— from Historia Insectorum Generalis, 1669
"I have often been astonished at the perfection of the smallest creatures, and have seen in them more of God's wisdom than in the largest animals."
— from Historia Insectorum Generalis, 1669
All quotes by Jan Swammerdam (419)
The microscope reveals a world as vast as the heavens.
To see truly, one must isolate the part and understand its relation to the whole.
The egg is the frontier of life, where all is decided.
I have sacrificed my sight to see what no man has seen before.
The louse, so hated by men, is a marvel of adaptation.
Nature uses the same principles in the wing of a fly and the fin of a fish.
The study of insects is a humbling profession, for it shows our ignorance.
In the caterpillar, I see the promise of the butterfly, as in the acorn the promise of the oak.
All my observations confirm one thing: there is a plan.
The instruments of my discovery are simple: patience, a sharp needle, and a clear eye.
The internal anatomy of an insect is a landscape of wonders.
I record what I see, not what I expect to see.
The frog and the insect teach us more about muscles than the dissection of a giant.
Every species is a fixed idea in the mind of God.
The more I learn, the less I find I know.
The book of nature is written in the language of anatomy.
I have shown that the insect breathes not from its mouth, but through pores in its sides.
The wonder is not that the butterfly flies, but that it was once a crawling worm.
My work is a prayer made with scalpel and lens.
Contemporaries of Jan Swammerdam
Other Biologys born within 50 years of Jan Swammerdam (1637–1680).