Maybe no great man is virtuous. Or good. Perhaps a man rich in those qualities by definition is barred from greatness.

I'm not competent to judge. But no doubt he was a great man.

On ev'ry hand it will allowed be, He's just—nae better than he should be.

Good and great are seldom in the same man.

How could you be a Great Man if history brought you no Great Events, or brought you to them at the wrong time, too young, too old? Too damaged.

He was clearly a man of many qualities, even if they were mostly bad ones.

Often behind a great man there is great pain.

If you weren't such a great man, you'd be a terrible bore.

[E]ven a great man cannot be wise in everything.

He probably was mediocre after all, though in a very honorable sense of that word.

The best good man, with the worst natur'd muse.

Great men may make great mistakes;

Never expect a perfect work from an imperfect man

The man who is all morality and intellect, although he may be good and even great, is, after all, only half a man.