We are all working together to one end, some with knowledge and design, and others without knowing what they do; as men also when they are asleep, of whom it is Heraclitus, I think, who says that they are labourers and co-operators in the things which take place in the universe. But men co-operate after different fashions: and even those co-operate abundantly, who find fault with what happens and those who try to oppose it and to hinder it; for the universe had need even of such men as these. It remains then for thee to understand among what kind of workmen thou placest thyself; for he who rules all things will certainly make a right use of thee, and he will receive thee among some part of the co-operators and of those whose labours conduce to one end. But be not thou such a part as the mean and ridiculous verse in the play, which Chrysippus speaks of.
As those who try to stand in thy way when thou art proceeding according to right reason, will not be able to turn thee aside from thy proper action, so neither let them drive thee from thy benevolent feelings towards them, but be on thy guard equally in both matters, not only in the matter of steady judgement and action, but also in the matter of gentleness towards those who try to hinder or otherwise trouble thee.