motive 和 motivation 有什么區(qū)別

motive
n. 動機，主旨; （藝術作品的） 主題，題材;
adj. 動機的; 運動的; 發(fā)動的;
vt. 促使;
motivation
n. 動機; 動力; 誘因;

motivation根據在新牛津詞源上顯示：
late 19th cent. :from MOTIVE,reinforced by MOTIVATE.
而在柯林斯詞典上：Your motivation for doing something is what causes you to want to do it. 動力（只有這一個意思，即積極性）
motive在柯林斯詞典上：
Your motive for doing something is your reason for doing it. 動機（是做這件事的原因）
在新牛津上：
a reason for doing sth,especially one that is hidden or not obvious(尤指隱藏的)動機、緣由

在學習中也遇到這個問題了，看了中文解釋還是有點不清楚兩者區(qū)別，這里給一個英文參考，“Motives are inferences about what arouses people to action, while motivation explains the direction and purposefulness that Americans identify with human conduct”,一個偏向誘因，一個偏向方向和目的性