All 19 Uses of

presume
in
The Fountainhead

You presumptuous bastard!†
Chpt 1.4

presumptuous = exercising privileges to which one is not entitled

It's a little presumptuous, you know—offering a present to God—and unless you do it in the best way possible, it will be offensive, not reverent.†
Chpt 2.10 *

Oh, I'm much more presumptuous than that, Mr. Wynand," said Toohey gaily.†
Chpt 3.1

I hate the presumptuousness of the idea.†
Chpt 3.9

presumptuousness = the state or degree of exercising privileges to which one is not entitled

You're as innocent and presumptuous as an emperor.†
Chpt 4.3

presumptuous = exercising privileges to which one is not entitled

Austen Heller said to Roark one evening: "If I may be so presumptuous, I think you need advice, Howard.†
Chpt 4.9

When he answered, he heard them say: "Oh, yes, indeed," and he saw the conscious politeness of their manner tell him that he was an architect by presumption.†
Chpt 1.14

She made it a point to show that she would presume to claim nothing but the waste scraps of his time.†
Chpt 2.13 *

I presumed to come here because I felt it was my duty to give you my opinion.†
Chpt 3.1

People could presume that his mockery was intended for the particular things they wished to mock.†
Chpt 3.1

It was an air of inanities uttered as revelations and insolently demanding acceptance as such; an air, not of innocent presumption, but of conscious effrontery; as if the author knew the nature of his work and boasted of his power to make it appear sublime in the minds of his audience and thus destroy the capacity for the sublime within them.†
Chpt 3.8

He forgot that he did not allow men he hired the presumption of personal speculation upon him.†
Chpt 4.2

Just because it feels like a presumption—the thought of handing you anything: a compliment, an idea or a fortune.†
Chpt 4.3

He had presumed too much and offended Toohey; that was the reason; that was the only reason.†
Chpt 4.7

She had the quiet radiance presumed and never found in childhood: the full consciousness of certainty, of innocence, of peace.†
Chpt 4.13

I presume you will want to make the structure efficiently economical in maintenance costs.†
Chpt 4.19

Definitions:

(1) (presume as in: presumption of innocence)
to think of something as true or likely, even though it is not known with certainty

Something can be presumed because it seems reasonable or because there is a rule or law demanding such an assumption. For example, in the United States someone charged with a crime is presumed by law to be innocent unless they are proven guilty at a trial.
(2) (presumptuous as in: she is presumptuous)
exercising privileges to which one is not entitled -- such as being too familiar or too bossy