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 VivekanandaIf the suns come down, and the moons crumble into dust, and systems after systems are hurled into annihilation, what is that to you? Stand as a rock; you are indestructible. You are the Self, the God of the universe. Say - "I am Existence Absolute, Bliss Absolute, Knowledge Absolute, I am He," and like a lion breaking its cage, break your chain and be free forever. What frightens you, what holds you down? Only ignorance and delusion; nothing else can bind you. You are the Pure One, the Ever-blessed.
Swami VivekanandaWe want the education by which character is formed, strength of mind is increased, the intellect is expanded, and by which one can stand on one's own feet.
Swami VivekanandaDo not lower your goals to the level of your abilities. Instead, raise your abilities to the height of your goals.
Swami VivekanandaPlunge into the world, and then, after a time, when you have suffered and enjoyed all that is in it, will renunciation come; then will calmness come. So fulfill your desire for power and everything else, and after you have fulfilled the desire, will come the time when you will know that they are all very little things; but until you have fulfilled this desire, until you have passed through that activity, it is impossible for you to come to the state of calmness, serenity, and self-surrender.
Swami Vivekananda