No good man ever became suddenly rich. [ Syrus ]

He has seen a wolf. (Proverb of one who suddenly curbs his tongue.) [ ? ]

There is no man suddenly either excellently good or extremely evil. [ Sir Philip Sidney ]

One of those terrible moments when the wheel of passion stands suddenly still. [ Edward Bulwer-Lytton ]

Nothing is so dangerous as being too modern; one is apt to grow old fashioned quite suddenly. [ Oscar Wilde, An Ideal Husband ]

Some folks say it was a miracle. Saint Francis suddenly appeared and knocked the next pitch clean over the fence. But I think it was just a lucky swing. [ Jack Handey, Deep Thoughts ]

There is no man suddenly either excellently good or extremely wicked; but grows so, either as he holds himself up in virtue, or lets himself slide to viciousness. [ Sir P. Sidney ]

By what strange law of mind is it that an idea long overlooked, and trodden underfoot as a useless stone, suddenly sparkles out in new light, as a discovered diamond? [ Mrs. Stowe ]

There are evil spirits who suddenly fix their abode in man's unguarded breast, causing us to commit devilish deeds, and then, hurrying back to their native hell, leave behind the stings of remorse in the poisoned bosom. [ Schiller ]

His eloquent tongue so well seconds his fertile invention that no one speaks better when suddenly called forth. His attention never languishes; his mind is always before his words; his memory has all its stock so turned into ready money that, without hesitation or delay, it supplies whatever the occasion may require. [ Erasmus ]