The Instructions of Gampopa

Not to tame your own mind or transcend the confusion that arises in your own experience, but rashly attempting to tame the minds of others, is extremely bewildered. If you do not first tame your own mind, then attempting to tame the minds of others or alleviate the bewilderment of others will not work, because you will still be so confused that you will not know how to do it, and you will probably only generate mental affliction. --The Instructions of Gampopa, Snow Lion Publications