Carl Wilhelm Scheele

I have found a new earth in heavy spar, which I call barytes.

The acid of fluoric acid is a distinct acid, and not a modification of vitriolic acid.

Air is not a simple substance, but a mixture of different gases.

By heating mercurius calcinatus in a closed vessel, I obtained a gas that supports combustion better than common air.

The discovery of new acids opens the door to understanding the composition of all matter.

Chemistry is the art of separating and combining substances to reveal nature's secrets.

Oxygen, though I call it fire air, is essential for life and combustion.

Many substances thought to be elements are compounds waiting to be decomposed.

The green color in plants comes from a metal dissolved in their juices.

Tartaric acid is not a simple substance but can be further analyzed.

In the laboratory, patience and precision yield the fruits of knowledge.

Nature's laws are written in the reactions of chemicals.

I have often poisoned myself with the very substances I study.

The pursuit of chemistry has brought me both joy and suffering.

Chlorine gas, though noxious, reveals the true nature of sea salt.

Life is short, but the discoveries we make endure.

Every experiment teaches, even those that fail.

The pharmacy is my true university.

Manganese yields oxygen when heated with acids.

In solitude, the mind sharpens its chemical insights.