Antonie Van Leeuwenhoek Quotes

Enjoy the top 12 famous quotes, sayings and quotations by Antonie Van Leeuwenhoek.

Antonie Van Leeuwenhoek Quotes

Whenever I found something remarkable, I have thought it my duty to put down my discovery on paper, so that all ingenious people be informed thereof.
— Antonie Van Leeuwenhoek —

In the year 1657 I discovered very small living creatures in rain water.

— Antonie Van Leeuwenhoek

The 4th sort of creatures ... which moved through the 3 former sorts, were incredibly small, and so small in my eye that I judged, that if 100 of them lay [stretched out] one by another, they would not equal the length of a grain of course Sand; and according to this estimate, ten hundred thousand of them could not equal the dimensions of a grain of such course Sand. There was discover'd by me a fifth sort, which had near the thickness of the former, but they were almost twice as long.
The first time bacteria were observed.

— Antonie Van Leeuwenhoek

I have divers times examined the same matter (human semen) from a healthy man ... not from a sick man ... nor spoiled by keeping ... for a long time and not liquefied after the lapse of some time ... but immediately after ejaculation before six beats of the pulse had intervened; and I have seen so great a number of living animalcules ... in it, that sometimes more than a thousand were moving about in an amount of material the size of a grain of sand ... I saw this vast number of animalcules not all through the semen, but only in the liquid matter adhering to the thicker part.

— Antonie Van Leeuwenhoek

I have divers times endeavoured to see and to know, what parts the Blood consists of; and at length I have observ'd, taking some Blood out of my own hand, that it consists of small round globuls driven through a Crystalline humidity or water.

— Antonie Van Leeuwenhoek

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