What is "generalising"

Usage examples of "generalising".

We do not waste our intellects in generalising, but take man or bird as we find him.

But particularising from the general could be every bit as dangerous and misleading as generalising from the particular: of Mrs Dansby-Gregg, as a person, I knew nothing.

But to what ultimate generalising purpose all these have written, the above cited extracts will show.