The body and mind are continually changing, and are, in fact, only names of series of changeful phenomena, like rivers whose waters are in a constant state of flux, yet presenting the appearance of unbroken streams. Every particle in this body is continually changing; no one has the same body for many minutes together, and yet we think of it as the same body.
Swami VivekanandaYou cannot take away one atom of matter or one foot-pound of force. You cannot add to the universe one atom of matter or one foot-pound of force. As such, evolution does not come out of zero; then, where does it come from? From previous involution.
Swami VivekanandaIt is always for greater joy that you give up the lesser. This is practical religion-the attainment of freedom, renunciation. Renounce the lower so that you may get the higher. Renounce! Renounce! Sacrifice! Give up! Not for zero. Not for nothing. But to get the higher.
Swami VivekanandaAs soon as a man stands up and says he is right or his church is right, and all others are wrong, he is himself all wrong. He does not know that upon the proof of all the others depends the proof of his own. Love and charity for the whole human race, that is the test of true religiousness. I do not mean the sentimental statement that all men are brothers, but that one must feel the oneness of human life.
Swami Vivekananda