I think moderation comes with age and wisdom.
Discussion
The question is, is moderation always a good thing?
Virtue is the mean between extremes.
Why? Jesus Christ was considered an extremist in his time, yet he was and is seen as the epitome of virtue.
Virtue is not the same as blandness. We often associate moderation with blandness, but actually moderation typically comes from rejecting the incorrect extremes while retaining principles.