The progress of mankind is due exclusively to the progress of natural sciences, not to morals, religion or philosophy.
Justus von LiebigFrom one sublime genius-NEWTON-more light has proceeded than the labour of a thousand years preceding had been able to produce.
Justus von LiebigThe loveliest theories are being overthrown by these damned experiments; it's no fun being a chemist anymore.
Justus von LiebigChocolate 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.
Justus von LiebigThe person who observes a clock, sees in it not only the pendulum swinging to and fro, and the dial-plate, and the hands moving, for a child can see all this; but he sees also the parts of the clock, and in what connexion the suspended weight stands to the wheel-work, and the pendulum to the moving hands.
Justus von LiebigOnly about seventy years ago was chemistry, like a grain of seed from a ripe fruit, separated from the other physical sciences. With Black, Cavendish and Priestley, its new era began. Medicine, pharmacy, and the useful arts, had prepared the soil upon which this seed was to germinate and to flourish.
Justus von Liebig