a cause of or reason for action
"we did not understand his motivation"
"he acted with the best of motives"
"a motive force"
"motive power"
"motor energy"
"it may well be that ethical language has primarily a motivative function"
"motive pleas"
"motivating arguments"
Convection in the lower mantle..provides the motive force for continental drift.
出自:Nature
The French Revolution..found..its motive power in the intelligence of men.
出自: fig.