(From Ouspensky's Psychology of Man's Possible Evolution, pp. 47-48)
Another prescription, which we must force ourselves to respect from our first step in esoteric work, is added to the rule which prescribes silence. If we observe people who participate in a conversation or general discussion, we will constate that, instead of listening for themselves, in order to learn, and speaking for others, each speaks for himself, and listens to others out of politeness to them. We do not escape this rule. Everybody wants to insert his ideas somewhere, and searches for the most suitable occasion to do this. While waiting for our chance, we listen with patience and more or less attend to what is being said. When a conversation is being led in such a way, it is of course a conversation of the deaf, where we can rarely learn, and where generally we learn nothing. When they separate, each participant takes back the luggage with which he came, with this difference, that this sort of conversation provokes a considerable loss of fine energies.
Lastly, it is firmly recommended to remain earnest in contacts with people like ourselves. This precept demands a comment. Being earnest, in this case, does not mean being morose, still less taciturn. Esoteric work requires a vigour of the mind. What we are asked to do is to maintain a positive emotional attitude within us, and to acquire inner serenity. Man must keep an attitude of benevolence towards all; he must rejoice with the happy, be charitable towards those who suffer, and indifferent to the wicked. He must not play the role of a clown. Much as this may be astonishing, such an attitude is much more harmful to him who is addicted to it than we may think. In reality, it tends to debase everything to the level of triviality and platitude. Clowning, derived from scepticism, is a true opponent to the enthusiasm indispensable for passing through those difficult moments which will never be wanting in esoteric work.
These rules must therefore be observed. That of keeping silent is imperative. Jesus attached great importance to it. So much so, that when expressing it to his disciples, He chose a form of striking brutality. This was to better anchor in their minds the need for preserving the tender and delicate germ of the new life, of real Life, when that germ is just starting to appear in man following his first conscious efforts. Jesus said: 'give not that which is holy unto dogs, neither cast your pearls before swine,' and he indicates the penalty: 'lest they trample them under their feet and turn and rend you.'
Nevertheless, people whose magnetic centres have made their appearance and are developing feel the need to talk about it. 'It is out of the abundance of the heart that the mouth speaks.' But let them only share their joys and experiences with those who, like them, have undertaken esoteric work. Besides, the rule of keeping silent is not obligatory, except at the beginning of esoteric training. Soon, by virtue of his conscious efforts, man starts to evolve and perceives the futility of most mundane relations. To mix the fruits of evolution with this life is always erroneous.