The doer alone learneth.

Whenever I climb I am followed by a dog called 'Ego'.

Obstacles cannot crush me. Every obstacle yields to stern resolve. He who is fixed to a star does not change his mind.

Iron rusts from disuse; stagnant water loses its purity and in cold weather becomes frozen; even so does inaction sap the vigor of the mind.

He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast.

You will never have a greater or lesser dominion than that over yourself. . . . the height of a man's success is gauged by his self-mastery; the depth of his failure by his self-abandonment. . . . And this law is the expression of eternal justice. He who cannot establish dominion over himself will have no dominion over others.

Wisdom is the daughter of experience.

Make your work to be in keeping with your purpose.

One can have no smaller or greater mastery than mastery of oneself.

...you can render to God and humanity no greater service than to make the most of yourself.