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. — Justus von Liebig Copy Share Image
By the deficiency or absence of one necessary constituent, all the others being present, the soil is rendered barren for all those crops to… — Justus von Liebig Copy Share Image
I will now direct the attention of scientists to a previously unnoticed cause which brings about the metamorphosis and decomposition phenomena which are usually… — Justus von Liebig Copy Share Image
The loveliest theories are being overthrown by these damned experiments; it's no fun being a chemist anymore. — Justus von Liebig Copy Share Image
The secret of all those who make discoveries is that they regard nothing as impossible. — Justus von Liebig Copy Share Image
If it is impossible to judge merit and guilt in the field of natural science, then it is not possible in any field, and… — Justus von Liebig Copy Share Image
What struck me most in England was the perception that only those works which have a practical tendency awake attention and command respect, while… — Justus von Liebig Copy Share Image
There is in the chemist a form of thought by which all ideas become visible in the mind as strains of an imagined piece… — Justus von Liebig Copy Share Image
Chemistry, in its application to animals and vegetables. Endeavours jointly with physiology to enlighten us respecting the mysterious processes and sources of organic life. — Justus von Liebig Copy Share Image
The more fodder, the more flesh; the more flesh, the more manure; the more manure, the more grain. — Justus von Liebig Copy Share Image
But it must not be forgotten that ... glass and porcelain were manufactured, stuffs dyed and metals separated from their ores by mere empirical… — Justus von Liebig Copy Share Image
A time will come, when fields will be manured with a solution of glass (silicate of potash), with the ashes of burnt straw, and… — Justus von Liebig Copy Share Image
