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Antonie van Leeuwenhoek
![M]y work, which...](https://quotablesuccess.com/gif/TF.png)
M]y work, which...
M]y work, which I've done for a long time, was not pursued in order to gain the praise I now enjoy, but chiefly from a...
A man has...
A man has always to be busy with his thoughts if anything is to be accomplished.
In the year...
In the year of 1657 I discovered very small living creatures in rain water.
Source:...
![[W]henever I found...](https://quotablesuccess.com/gif/TN.png)
[W]henever I found...
[W]henever I found out anything remarkable, I have thought it my duty to put down my discovery on paper, so that all...
I've spent more...
I've spent more time than many will believe [making microscopic observations], but I've done them with joy, and I've...