Training the intellect does not result in intelligence. Intelligence comes into being when one acts in perfect harmony, both intellectually and emotionally.
... the good for man is an activity of the soul in accordance with virtue, or if there are more kinds of virtue than one, in accordance with the best and most perfect kind.
Perfect wisdom has four parts: Wisdom, the principle of doing things aright. Justice, the principle of doing things equally in public and private. Fortitude, the principle of not fleeing danger, but meeting it. Temperance, the principle of subduing desires and living moderately.
When you look back on your life, it looks as though it were a plot, but when you are into it, it's a mess: just one surprise after another. Then, later, you see it was perfect.
If a thing happens once, it can happen again. If any human being has ever realised perfection, we too can do so. If we cannot become perfect here and now, we never can in any state or heaven or condition we may imagine.