Neither numbers nor powers nor wealth nor learning nor eloquence nor anything else will prevail, but purity, living the life, in one word, anubhuti, realisation. Let there be a dozen such lion-souls in each country, lions who have broken their own bonds, who have touched the Infinite, whose whole soul is gone to Brahman, who care neither for wealth nor power nor fame, and these will be enough to shake the world.
Never think there is anything impossible for the soul. It is the greatest heresy to think so. If there is sin, this is the only sin; to say that you are weak, or others are weak.
Perfect sincerity, holiness, gigantic intellect, and all-conquering will. Let only a handful of men work with these, and the whole world will be revolutionized.
Look upon every man, woman, and everyone as God. You cannot help anyone, you can only serve: serve the children of the Lord, serve the Lord Himself, if you have the privilege.
Mistakes are a part of being human. Appreciate your mistakes for what they are: precious life lessons that can only be learned the hard way. Unless it's a fatal mistake, which, at least, others can learn from.