Speech

Control over what one says is more important than complete silence. The best is to learn to say what is useful in the most exact and true way possible. A little bit of sincere practice is worth much more than a lot of written or spoken words.
Speak less, act more.

Vigilance

To be vigilant is not merely to resist what pulls you downward, but above all to be alert in order not to lose any opportunity to progress, any opportunity to overcome a weakness, to resist a temptation, any opportunity to learn something, to correct something, to master something. If you are vigilant, you can do in a few days what would otherwise take years. If you are vigilant, you change each circumstance of your life, each action, each movement into an occasion for coming nearer the goal.

Will

There must first be the will to change firmly conceived and held—then to open the consciousness to the Force and let it work with the inner assent to its working. When there is the psychic opening, then even the things most obstinate in the nature can change. Develop the will—the will grows by a steady use, like the muscles, and grows strong.

Food

The first thing to be attained about eating, is to get rid of the greed of food, the attachment and desire,—to take it only as a need of the body, to think little of it and not to allow it to occupy a big place in the life; also to be satisfied with what you get, not to hanker. At the same time sufficient food should be taken, avoiding either deficiency or excess; an excessive coercion or nigraha in this respect (as opposed to reasonable control) often brings a reaction. One should go steadily, but not try to get too much done at once.