Sex, a great and mysterious motive force in human life, has indisputably been a subject of absorbing interest to mankind through the ages. William J. Brennan
Desire is poverty. Desire is the greatest impurity of the mind. Desire is the motive force for action. Desire in the mind is the real impurity. Even a spark of desire is a very great evil. Swami Sivananda
The alternation of motion is ever proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed. Isaac Newton
The people, and the people alone, are the motive force in the making of world history. Mao Zedong
I believe absolutely in love being the central motive force of the universe. Laurence Housman
Religion is a great force - the only real motive force in the world; but what you fellows don't understand is that you must get at a man through his own religion and not through yours. George Bernard Shaw