The power of concentration is the only key to the treasure-house of knowledge.

Whatever you are doing, put your whole mind on it. If you are shooting, your mind should be only on the target. Then you will never miss. If you are learning your lessons, think only of the lesson. In India boys and girls are taught to do this.

Man's free agency is not of the mind, for that is bound. There is no freedom there.

Oh, if only you knew yourselves! You are souls; you are Gods. If ever I feel like blaspheming, it is when I call you man.

Anything that is secret and mysterious in this system of Yoga should be at once rejected. The best guide in life is strength. In spirituality, as in all other matters, discard everything that weakens you. Have nothing to do with it. Mystery-mongering weakens the human brain. It has well-nigh destroyed Yoga, one of the grandest of sciences

Do one thing at a Time, and while doing it put your whole Soul into it to the exclusion of all else.

The powers of the mind should be concentrated and the mind turned back upon itself; as the darkest places reveal their secrets before the penetrating rays of the sun, so will the concentrated mind penetrate its own innermost secrets.