I have to talk like this! It`s my job

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.

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.

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

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).

No law of nature, however general, has been established all at once; its recognition has always been preceded by many presentiments.

The elements which are the most widely diffused have small atomic weights.