You must remember that everyone without exception stands in life just where the evolutionary flow has brought him and that his outward life is the result of all those previous experiences in many, many incarnations. His outlook and his beliefs, his attitude towards life are all part of his evolving growth. Therefore you will not try to convert him. If, however, doubts begin to arise in his mind and he asks you questions, then it is right for you to speak to him of a higher viewpoint. But say just what needs to be said to give him the light you see he needs, and no more. If you go too far you will confuse him. If you give him just enough to carry his mind a step onward you will help him. Until then every effort you make is wasted; it is throwing seed on to stony ground. Therefore, unless you are asked in this way it is unnecessary and often unwise to advertise that you are following spiritual practices or believe in spiritual truths. If you live with others and make a fuss about these things you may arouse their hostility. If you really have something to give them they will come to you one day and ask for help. You must learn discretion in dealing with people. You must learn when to be silent and when to speak, and when you do speak how much to say.
-- Notebooks Category 2: Overview of Practices Involved > Chapter 8: The Quest and Social Responsibility > # 48