"As is known, scientific physics dates its existence from the discovery of the differential calculus. Only when it was…"

"Definite portions of a manifoldness, distinguished by a mark or by a boundary, are called Quanta. Their comparison wi…"

"If in the case of a notion whose specialisations form a continuous manifoldness, one passes from a certain specialisa…"

"Measure-relations can only be studied in abstract notions of quantity, and their dependence on one another can only b…"

"For Space, when the position of points is expressed by rectilinear co-ordinates, ds = \sqrt{ \sum (dx)^2 }; Space is …"

"Let us imagine that from any given point the system of shortest lines going out from it is constructed; the position …"

"With every simple act of thinking, something permanent, substantial, enters our soul. This substantial somewhat appea…"

"Mind-masses entering the soul appear to us as ideas, the quality of the latter depending on the inner state of the fo…"

"Forming mind-masses amalgamate, combine or compound themselves in definite degree, partly with each other, partly wit…"

"Nevertheless, it remains conceivable that the measure relations of space in the infinitely small are not in accordanc…"