In this apparatus is nothing new but its simplicity and thorough trustworthiness. On his revolutionary method of organic analysis.

If you want to become a chemist, you will have to ruin your health. If you don't ruin your health studying, you won't accomplish anything these days in chemistry. Liebig's advice to Kekulé.

Chocolate is a perfect food, as wholesome as it is delicious, a beneficent restorer of exhausted power...it is the best friend of those engaged in literary pursuits.

The secret of all those who make discoveries is that they regard nothing as impossible.

Chemistry, in its application to animals and vegetables. Endeavours jointly with physiology to enlighten us respecting the mysterious processes and sources of organic life.

Observation is like a piece of glass, which, as a mirror, must be very smooth, and must be very carefully polished, in order that it may reflect the image pure and undistorted.

The more fodder, the more flesh; the more flesh, the more manure; the more manure, the more grain.

A fact acquires its true and full value only through the idea which is developed from it.

If it is impossible to judge merit and guilt in the field of natural science, then it is not possible in any field, and historical research becomes an idle, empty activity.

The progress of mankind is due exclusively to the progress of natural sciences, not to morals, religion or philosophy.

In the progressive growth of astronomy, physics or mechanical science was developed, and when this had been, to a certain degree, successfully cultivated, it gave birth to the science of chemistry.

I am charging you with the protection of my mother and friends, not to mention keeping my younger self off the Internet. He is as dangerous as Opal.

Character is a course, finish it.

It is wrong to have an ideal view of the world. That's where the mischief starts. That's where everything starts unravelling...

I really have been lucky because I've always had a very healthy attitude to my body.

Revolutions are the periods of history when individuals count most.

There's a lot more power in calm than in vituperation.

You cannot be driven by the polls. The polls change all the time; they're easily manipulated by whoever wants to ask those poll questions; they go up; they go down.

I want to direct $10 billion to create a make it in America partnership to support American manufacturing.

People eat meat and think they will become as strong as an ox, forgetting that the ox eats grass.

Look at the moon in the sky, not the one in the lake.