the driving force



*the driving force (behind someone or something )

the person or a thing that motivates or directs someone or something. (*Typically: be ~; become ~; serve as~.) Making money is the driving force behind most businesses. Ambition is the driving force behind Tom. Love can also be the driving force.
See also: driving, force

Common Names:

NameGenderPronouncedUsage
Nye-Welsh
Kreine-Yiddish
Montanamahn-TAN-əEnglish (Modern)
WinslowWINZ-loEnglish (Rare)
Phile-Ancient Greek
GertrudGER-troot (German)German, Ancient Germanic