Man dies but once. My disciples must not be cowards.

Man is really free, the real man cannot but be free.

Man is man so long as he is struggling to rise above nature, and this nature is both internal and external.

Everything, both mental and physical, is rigidly bound by the law of causation.

In Shankaracharya we saw tremendous intellectual power, throwing the scorching light of reason upon everything.

We never want Him. We say, "Lord, give me a fine house." We want the house, not Him. "Give me health! Save me from this difficulty!" When a man wants nothing but Him, [he gets Him].

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.