"The only secrets are the secrets that keep themselves"

This quote by George Bernard Shaw talks to the concept that some secrets are much better left untold. It recommends that some tricks are so effective that they are best kept to oneself. This could be interpreted as a caution against revealing too much about oneself or one's strategies. It could also be interpreted as a reminder that some tricks are so essential that they must not be shown anyone else. It might also be interpreted as a pointer that some tricks are so individual that they ought to not be shown anybody else. Eventually, this quote is a pointer that some tricks are best kept to oneself which it is essential to be conscious of what one reveals to others.