This quotation, credited to an anonymous author, shows that money is power:

Of course we know that money isn't everything, but it is certainly worth saving!

Puzzle breakdown:
minus =
Window - Doe = WHEN
(note spelling isn't always accurate. Most rebus clues are phonetic.)

plus =
Ma + Knee = MONEY

T+ minus =
T + Box - Bee = TALKS

minus plus - L + E =
Nose - Z + Bottle - L + E = NOBODY

plus+S =
Note + ice + S = NOTICES

W+ - N =
W + nut - N = WHAT

G+ +R =
G+ ram + R = GRAMMAR

minus =
Mitten - Men = IT

- F =
Fuses - F = USES

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