The most all penetrating spirit before which will open the possibility of tilting not tables,...#Dmitri Mendeleev
The magnitude of the atomic weight determines the character of the element, just as the...#Dmitri Mendeleev
The establishment of a law, moreover, does not take place when the first thought of...#Dmitri Mendeleev
The elements, if arranged according to their atomic weights, exhibit an apparent periodicity of properties.#Dmitri Mendeleev
Pleasures flit by - they are only for yourself; work leaves a mark of long-lasting...#Dmitri Mendeleev
