Whether presumption is opposed to magnanimity by excess?

❌ Objection 1 : It seems that presumption is not opposed to magnanimity by excess. For presumption is accounted a species of the sin against the Holy Ghost, as stated above (Question [14], Article [2]; Question [21], Article [1]). But the sin against the Holy Ghost is not opposed to magnanimity, but to charity. Neither therefore is presumption opposed to magnanimity.

❌ Objection 2 : Further, it belongs to magnanimity that one should deem oneself worthy of great things. But a man is said to be presumptuous even if he deem himself worthy of small things, if they surpass his ability. Therefore presumption is not directly opposed to magnanimity.

❌ Objection 3 : Further, the magnanimous man looks upon external goods as little things. Now according to the Philosopher (Ethic. iv, 3), "on account of external fortune the presumptuous disdain and wrong others, because they deem external goods as something great." Therefore presumption is opposed to magnanimity, not by excess, but only by deficiency.