Biology Quotes

The knowledge of plants is the foundation of medicine, for from them we derive remedies for all ailments.

Life did not take over the world by combat, but by networking.

Evolution is not a force but a process, not a cause but a history.

A scientific theory is a tool, not a creed.

The evidence for the chromosome theory of heredity rests on three main lines of inquiry: the cytological, the genetic, and the experimental.

The brain is a world consisting of a number of worlds, each of which is a world in itself.

Every species has come into existence coincident both in space and time with a pre-existing closely allied species.

The observer who discovers a new fact, however small, is greater than he who invents a system.

Nature, in her operations, has always proceeded by degrees, and has never made leaps.

The style is the man himself.

The number of species of plants and animals is so great that it is impossible to give a full and accurate account of them all.

The microscope reveals to us that which the naked eye cannot perceive, and thus opens up a new world of wonders.

Nature is the best teacher, and her book is always open.

The love of knowledge is a divine passion.

The heart has only two ventricles, and there is no visible passage between them.

Life is measured not by the number of breaths we take, but by the moments that take our breath away.

One sometimes finds what one is not looking for.

Hope lies in dreams, in imagination, and in the courage of those who dare to make dreams into reality.

If all insects were to vanish, the environment as we know it would collapse. If humanity were to vanish, the environment would flourish.

I have discovered living creatures in water, rain, and snow, in the mouth and intestines of man, and in many other places.