Languages are true analytical methods.

Nothing is lost, nothing is created, everything is transformed

I consider nature a vast chemical laboratory in which all kinds of composition and decompositions are formed.

Nothing is born, nothing dies.

Sulfur, when burning, absorbs oxygen gas; the resulting acid is considerably heavier than the sulfur burned; its weight is equal to the sum of weights of the sulfur burned and the oxygen absorbed.

Vegetation is the basic instrument the creator uses to set all of nature in motion.

It is impossible to disassociate language from science...To call forth a concept, a word is needed.

In performing experiments, it is necessary... that they be simplified as much as possible, and that every circumstance that could complicate the results should be completely removed.

It required 85 parts by weight of oxygen and 15 parts of hydrogen to compose 100 parts of water.

I am young and avid for glory.

One succeeds in obtaining an equivalent production at a lower price by improving the arts, trades and agriculture and by developing the physical and moral qualities of workers, farmers and craftsmen.

Failure is a part of life. Success teaches you nothing, but failure teaches you resilience. It teaches you to pick yourself up and try again.

Let the car drive and let your heart follow.

It is their character indeed that makes people who they are. But it is by reason of their actions that they are happy or the reverse.

Man is Creation's masterpiece. But who says so?

I could probably say a lot of things, but I'm not sure they'd be fit for publication.

I’ll be marching through the morning, Marching through the night, Moving 'cross the borders Of My Secret Life.

Pride is a fruitful source of uneasiness. It keeps the mind in disquiet. Humility is the antidote to this evil.

It's easy to get a loan unless you need it.

Terry Pratchett's right up my alley ... give him a try!

You can tell a lot about a person from his underwear.