Watch your thoughts, for they become your words.
Watch your words, for they become your actions.
Watch your actions, for they bcome your habits.
Watch your habits, for they become your character.
Watch your character, for it will become your destiny.
like the Poem “Sow a thought” by Charles Reade – English writer (1814-1884), often falsely attributed as “from Talmud”, Quotations book 2006
see: http://www.talmud.de/cms/Haeufige_Fragen.377.0.html