Adam Clarke on Ecclesiastes 7:10

The former days were better than these? - This is a common saying; and it is as foolish as it is common. There is no weight nor truth in it; but men use it to excuse their crimes, and the folly of their conduct. "In former times, say they, men might be more religious, use more self-denial, be more exemplary." This is all false. In former days men were wicked as they are now, and religion was unfashionable: God also is the same now as he was then; as just, as merciful, as ready to help: and there is no depravity in the age that will excuse your crimes, your follies, and your carelessness.

Among the oriental proverbs I find the following: "Many say, This is a corrupt age. This mode of speaking is not just, it is not the age that is corrupt, but the men of the age."