The clock is impotent; mechanical time does not affect those living in an eternal present. — Paul Schrader
[The American position at the UN is] essentially impotent, without influence, heavily — Jeane Kirkpatrick
To freemen, threats are impotent. [Lat., Nulla enim minantis auctoritas apud liberos est.] — Marcus Tullius Cicero
I think, whatever mortals crave, With impotent endeavor, A wreath–a rank–a throne–a — Winthrop Mackworth Praed
Idealism without pragmatism is impotent. Pragmatism without idealism is meaningless. The key — Richard M. Nixon