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 Read Quote
How little do we discover in comparison of those things which now are and forever will be hidden from our sight? The whole of which I am fully persuaded no one will ever be able to dive into, and to explain their causes and effects. Antonie van Leeuwenhoek Read Quote
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 Read Quote
A man has always to be busy with his thoughts if anything is to be accomplished. Antonie van Leeuwenhoek Read Quote
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 Read Quote
When I have supped too heavily of an evening, I drink in the morning a large number of cups of coffee, and that as hot as I can drink it, so that the sweat breaks out on me, and if by so doing I can’t restore my body, a whole apothecary’s shop couldn’t do much, and that is the only thing I have done for years when I have felt a fever. Antonie van Leeuwenhoek Read Quote
I have oft-times been besought, by divers gentlemen, to set down on paper what I have beheld through my newly invented microscopia, but I have generally declined. Antonie van Leeuwenhoek Read Quote
My determination is not to remain stubbornly with my ideas, but I’ll leave them and go over to others as soon as I am shown plausible reasons which I can grasp. Antonie van Leeuwenhoek Read Quote
If any person examines by the microscope that part towards the extremity of the spider’s body from whence its thread proceeds, he will observe the spot to be, as it were, surrounded by five several protuberances or risings, each ending in a point and altogether forming a kind of enclosure. Antonie van Leeuwenhoek Read Quote
Man comes not from an egg but from an animalcule that is found in male sperm. Antonie van Leeuwenhoek Read Quote
