Knowledge = γνώση (modern), γνώσις (ancient)
Ambition = φιλοδοξία (modern), φιλοτιμία (ancient)
Power = ισχύς (modern), ισχύς (ancient)
Δύναμη translates better as "strength".
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Vasiliki Baskou, Instructor/Director, https://learn-greek-online.com.