We could live at the present day without a Plato, but a double number of Newtons is required to discover the secrets of nature, and to bring life into harmony with the laws of nature.

It is the function of science to discover the existence of a general reign of order in nature and to find the causes governing this order. And this refers in equal measure to the relations of man - social and political - and to the entire universe as a whole.

Certain characteristic properties of elements can be foretold from their atomic weights.

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).

I want you to have this feeling too - it is my moral responsibility to help you achieve this inner freedom.

The elements, if arranged according to their atomic weights, exhibit an apparent periodicity of properties.