In mathematics we find the primitive source of rationality; and to mathematics must the biologists resort for means to carry out their researches.


The Positive Philosophy, trans. Harriet Martineau (1853), Vol. 1


In mathematics we find the primitive source of rationality; and to mathematics must the biologists resort for means to carry out their researches.

In mathematics we find the primitive source of rationality; and to mathematics must the biologists resort for means to carry out their researches.

In mathematics we find the primitive source of rationality; and to mathematics must the biologists resort for means to carry out their researches.

In mathematics we find the primitive source of rationality; and to mathematics must the biologists resort for means to carry out their researches.