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People who have never had a broken heart will never understand dead roses, Tolstoy, airport lounges, Albinoni's Adagio in G Minor, neat brandy, the moon and drizzle.

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Antonie van Leeuwenhoek

Man has always to be busy with his thoughts if anything is to be accomplished.

Accomplished, Busy, Man, Men, Thoughts
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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.

Discovery, Duty, Found, Paper, People

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.

Bodies, Heart, Particle, Sand, Saws, Size

I've spent more time than many will believe [making microscopic observations], but I've done them with joy, and I've taken no notice those who have said why take so much trouble and what good is it?

Believe, Good, Joy, Taken, Time

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

1657, Creatures, Discovered, Rain, Water, Years

[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 craving after knowledge, which I notice resides in me more than in most other men. And therewithal, whenever I found out anything remarkable, I have thought it my duty to put down my discovery on paper, so that all ingenious people might be informed thereof.

Hard Work, Ingenious, Knowledge, Men, Notice, Wisdom
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