Dmitri Mendeleev
Periodic table of elements
Sayings by Dmitri Mendeleev
I have achieved an inner freedom.
It is useful in this sense to make a clear distinction between the conception of an element as a separate homogenous substance and as a material but invisible part of a compound.
Atomic weight belongs not to coal or diamond but carbon.
No law of nature, however general, has been established all at once; its recognition has always been preceded by many presentiments.
Pleasures flit by -- they are only for yourself; work leaves a mark of long-lasting joy, work is for others.
Science which deals with the infinite is itself without bounds.
The invisible world of chemical atoms is still waiting for the creator of chemical mechanics.
Refrain from illusions, insist on work, and not on words, patiently search divine and scientific truth.
By gradually studying matter, people finally take command of it.
Hypotheses help and guide scientific work — the search for truth — as the tiller's plough helps the cultivation of useful plants.
What has been sown for the field of science will grow up for the people's welfare.
In science we must all submit not to what seems to us attractive from one point of view or another, but to what represents an agreement between theory and experiment.
he reproached the modern scientific thought because it “got entangled in ions and electrons”.