The essential feature of the science of to-day is its quantitative character.

They could not, as they conceived the physical world, accept its purely quantitative character.

This involves an analysis of the whole significance of the qualitative and quantitative character of a population, with reference to any given values—standards of living, individual level of efficiency, liberty and determinism, etc.

But the biologist also knows that sex is a quantitative character.

The situation of an electron in any small duration may be defined as that event which has the quantitative character which is the charge of the electron.