Dmitri Mendeleev Quotes
The most all penetrating spirit before which will open the possibility of tilting not tables, but planets, is the spirit of free human inquiry. Believe only in that.
I saw in a dream a table where all the elements fell into place as required. Awakening, I immediately wrote it down on a piece of paper.
Knowing how contented, free, and joyful is life in the world of science, one fervently wishes that many would enter its portals.
Certain characteristic properties of elements can be foretold from their atomic weights.
The magnitude of the atomic weight determines the character of the element, just as the magnitude of the molecule determines the character of a compound body.
Elements which are similar as regards their chemical properties have atomic weights which are either of nearly the same value (eg. Pt, Ir, Os) or which increase regularly (eg. K, Ru, Cs).
If all the elements are arranged in the order of their atomic weights, a periodic repetition of properties is obtained. This is expressed by the law of periodicity.
Work, look for peace and calm in work: You will find it nowhere else. Pleasures flit by -- they are only for yourself; work leaves a mark of long-lasting joy, work is for others.
We must expect the discovery of many as yet unknown elements-for example, elements analogous to aluminum and silicon- whose atomic weight would be between 65 and 75.
The elements, if arranged according to their atomic weights, exhibit an apparent periodicity of properties.
No law of nature, however general, has been established all at once; its recognition has always been preceded by many presentiments.
I want you to have this feeling too - it is my moral responsibility to help you achieve this inner freedom.