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Famous Quotes of Antonie van Leeuwenhoek

Antonie van Leeuwenhoek Quotes

Antonie van Leeuwenhoek (1632–1723) was a Dutch scientist acclaimed for his groundbreaking contributions to microscopy and microbiology. Despite lacking formal training, he crafted simple microscopes, enabling unparalleled observations of the microscopic realm. Leeuwenhoek’s meticulous work unveiled the existence of microorganisms, including bacteria and protozoa, which he termed “animalcules.” His discoveries revolutionized scientific understanding, illuminating previously unseen facets of life. Notably, he first documented bacteria and observed sperm cells, pioneering fields like bacteriology and reproductive biology.

Antonie van Leeuwenhoek Quotes

1. “Man has always to be busy with his thoughts if anything is to be accomplished.”
— Antonie van Leeuwenhoek

2. “In the year 1657 I discovered very small living creatures in rain water.”
Antonie van Leeuwenhoek

3. “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

4. “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

5. “I observed certain animalcules, within whole bodies I saw so quick a motion as to exceed belief; they were about the size of a large grain of sand, and their bodies being transparent, that the internal motion could plainly be seen. Among other things, I saw in the body of one of these animalcules a bright and round corpuscle, placed near the head, and in which a very wonderful swift motion was to be seen, consisting of an alternate extension and contraction. This particle I concluded to be the heart.”
— Antonie van Leeuwenhoek

6. “Examining this water…I found floating therein divers earthy particles, and some green streaks, spirally wound serpent-wise…and I judge that some of these little creatures were above a thousand times smaller than the smallest ones I have ever yet seen, upon the rind of cheese, in wheaten flour, mould, and the like.”
— Antonie van Leeuwenhoek

7. “Passing just lately over this lake, … and examining this water next day, I found floating therein divers earthy particles, and some green streaks, spirally wound serpent-wise, and orderly arranged, after the manner of the copper or tin worms, which distillers use to cool their liquors as they distil over. The whole circumference of each of these streaks was about the thickness of a hair of one’s head. … all consisted of very small green globules joined together: and there were very many small green globules as well. [The earliest recorded observation of the common green alga Spyrogyra.]”
— Antonie van Leeuwenhoek

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