How we cite our quotes: (Book.Chapter.Bekker #s); all Bekker line numbers are approximate, since they are keyed to the original Greek.
Quote #4
It is clear, as a result, that the most precise of the sciences would be wisdom. The wise person, therefore, ought not only to know what proceeds from the principles but also to attain the truth about the principles. Wisdom, as a result, would be intellect and science, a science of the most honorable matters that has as it were, its capstone. (6.7.1141a16-21)
Aristotle's describing the action of the contemplative life: to be able to understand stuff, whether how it originates or what it actually is. Though this sounds a little underwhelming, think about it for a minute. If you understood how things worked and what that meant for life on earth (without Googling it), you'd be the guru of everything.
Quote #5
Hence even some who are without knowledge—those who have experience, among others—are more skilled in acting than are others who have knowledge. (6.7.1141b17-18)
Aristotle explains to us that while those with knowledge (i.e. the wise) should be revered as having the best of intellectual virtues, quite frankly, they're sometimes worthless. This is because they don't do anything.
That is the trap of the contemplative life: to be able to perceive the truth, but not to act on one's behalf. So the prudent have the advantage here. With experience, a person might make good decisions that make life better (i.e. happier). And since the prudent are concerned with good actions, the odds are that they'll rouse themselves from thought long enough to complete something.
Quote #6
For wisdom, on the one hand, will not contemplate anything as a result of which a human being will be happy (since wisdom is not concerned with anything that is coming-into-being), while prudence, on the other hand, does pertain to this. (6.12.1143b19-22)
The wise spend their time obtaining and contemplating universal, scientific knowledge (i.e. that which "does not admit to being otherwise). This is all very well and good, but it also means that the wise don't concern themselves with actions, or with the deliberation that has to precede choice. As a result, their lives to don't actively seek to bring the good home to them. While the wise seek to educate themselves, they don't do it for a different end; education is always for the sake of knowledge and nothing else.