Quote by Mark Pimentel

“There is no substance which is not a poison; all are poisonous. Only the dose determines.”

— Philippus Theophrastus

“The calcium of bones, the keratin of eyelashes, the exhalations of our bodies - all these are reconstituted as carbon atoms, used to make…

— Hermione Eyre

A cell is regarded as the true biological atom.

— George Henry Lewes

This substance, which is manifold in its forms and protean in its transformations, has, in its state of living matter, one physiological name which…

— Asa Gray

“As we men live and act, so do our arteries; so does blood; so do corpuscles. As cells and protoplasm live and act, so…

— Kaiten Nukariya

The chemist who can extract from his heart's elements compassion, respect, longing, patience, regret, surprise, and forgiveness and compound them into one can create…

— Anonymous

I think the decision to make substances like steroids from plants, rather than from animal tissues, was a landmark in the history of medicine…

— Gregory Petsko

Physiology is the science which treats of the properties of organic bodies, animal and vegetable, of the phenomena they present, and of the laws…

— Anonymous

Analogue. A part or organ in one animal which has the same function as another part or organ in a different animal.

— Richard Owen

“Sacred chemistry is a meta-chemistry.”

— Marc David

Every chemical substance, whether natural or artificial, falls into one of two major categories, according to the spatial characteristic of its form. The distinction…

— Louis Pasteur

“It is the form of hemoglobin, then, that permits its function. The physical structure of the molecule enables its chemical nature, the chemical nature…

— Siddhartha Mukherjee