Strength, strength is what the Upanishads speak to me from...

Strength, strength is what the Upanishads speak to me from every page. This is the one great thing to remember, it has been the one great lesson I have been taught in my life; strength, it says, strength, O man, be not weak. Are there no human weaknesses? - says man. There are, say the Upanishads, but will more weakness heal them, would you try to wash dirt with dirt? Will sin cure sin, weakness cure weakness? Strength, O man, strength, say the Upanishads, stand up and be strong.