I never could have done what I have done without the habits of punctuality, order, and diligence, without the determination to concentrate myself on one subject at a time.
Those that only take a nibble here and a nibble there will never attain anything ... Those who really want to be yogis must give up, once and for all, this nibbling at things. Take up one idea. Make that one idea your life - think of it, dream of it, live on that idea.
If you have not even a little imagination, you are simply a brute. So you must not lower your ideal, neither are you to lose sight of practicality. We must avoid the two extremes.... You must try to combine in your life immense idealism with immense practicality.