15 Antonie van Leeuwenhoek Quotes for You to Enjoy

Antonie van Leeuwenhoek

Dutch Scientist

Born: 1632

Died: 1723

Animals Down Man Time Water Will

Related authors: Abraham Pais Edsger Dijkstra Frans de Waal Guido van Rossum Hendrik Poinar Louise Fresco Nikolaas Tinbergen Wietse Venema

A man has always to be busy with his thoughts if anything is to be accomplished. Antonie van Leeuwenhoek

Thoughts Man Busy Always His Accomplished Anything

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. Antonie van Leeuwenhoek

People Thought Duty Down Paper Out Remarkable Put Discovery Whenever Anything Informed Might Ingenious Thereof Found

I now found that the spider cannot fix its thread to anything without imprinting the hind part of its body on the place, by which pressure it emits an incredible number of excessively small threads diverging in every direction from whence we may conclude that as soon as the threads are exposed to the air, they lose their viscosity or gluey quality. Antonie van Leeuwenhoek

Quality Pressure Spider Lose Every Incredible Air Thread Threads Direction Small Excess Part Soon Without Conclude Fix May Whence Anything Cannot Place Which Body Exposed Found Now Number

People who look for the first time through a microscope say, 'Now I see this, and then I see that,' and even a skilled observer can be fooled. On these observations I have spent more time than many will believe, but I have done them with joy, and I have taken no notice of those who have said, 'Why take so much trouble,' and, 'What good is it?' Antonie van Leeuwenhoek

Time Good People Joy Will Trouble First Believe Say Spent Those See More Fooled Through Take Observations Taken Observer Look First Time Said Than Microscope Done Them Then Much Notice Skilled Who Many Even Now Why

We will admit that, out of the mud or sand which is found on the seashore or the beds of our rivers, at low water, shellfish or testaceous animals come forth, but it does not from thence by any means follow that they are produced without any regular course of generation. Antonie van Leeuwenhoek

Generation Water Will Animals Our Out Follow Admit Rivers Come Course Without Does Beds Any Which Low Sand Forth Produced Mud Regular Means Seashore Found

Life lives on life - it is cruel, but it is God's will. And it is for our good, of course, because if there weren't little animals to eat up the young mussels, our canals would be choked by those shellfish, for each mother has more than a thousand young ones at a time! Antonie van Leeuwenhoek

Life God Time Good Mother Will Animals Young Our Those Thousand Would Would-Be Eat More Cruel Course Because Were Up Than Little Choked Each Lives

Man comes not from an egg but from an animalcule that is found in male sperm. Antonie van Leeuwenhoek

Man Sperm Male Egg Found

Just as the supposed number may differ from the true number by fully 100, 150, or even 200 in a flock of 600 sheep, so may I be even more out of my reckoning in the case of these very little animalcules. Antonie van Leeuwenhoek

Sheep Reckoning Out Case More True Supposed Very May Just Differ Little Fully Even Flock Number

In treating of the oak, I have considered that the species of it growing in warm climates is superior to that which is produced in cold countries. But we must not imagine this to be the case with all woods; on the contrary, the fir timber grown in cold countries is superior to that produced in warm ones, where its growth is rapid. Antonie van Leeuwenhoek

No one can pretend to say that a fish is ever killed by heat, for many kinds of fish, in the middle of summer, and in the burning heat of the sun, do either play, as it were, on the surface of the water, or hide themselves under the leaves, weeds, or other substances at the bottom. Antonie van Leeuwenhoek

Water Hide Other Summer Say Sun Pretend Kinds Weeds No-One Bottom Surface Leaves Fish Were Heat Substances Middle Burning Either Themselves Many Ever Play

For my part, I would say that the male sperm and seeds of plants have been penetrated so far that there is nothing further to discover in this great secret, but I could err in my opinion. Antonie van Leeuwenhoek

Great Plants Nothing Secret Say Further Sperm Would Seeds Could Part Great Secret Opinion Been Discover Male Err In My Opinion Far

I must confess... I don't know any tongue but the Nether-Dutch. Antonie van Leeuwenhoek

Must Know Confess Any Tongue

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