I don't think this is what is held by those-who-do-science-and-philosophy-at-large (though it may be a generally accepted hand-wave, I don't know). See, for example Category Theory for a branch of what-I-believe-would-generally-be-called-science that doesn't use numbers, but instead expresses things with sets and relations.

The logician is the intersection of the set of all scientists and the set of all philosophers.