Meditation 10.35

35. The healthy eye should be able to look at every object of sight, and not to say: 'I wish it were green', for this is what a man does who has ophthalmia. The healthy ear and nose must be ready for every object of hearing or smell, and the healthy stomach must be disposed to every kind of nourishment as the mill is ready for everything which it is made to grind. Accordingly the healthy understanding too must be ready for all circumstances; but that which says: 'may my children be kept safe' or 'may all men praise whatever I do', is the eye looking for green or the teeth for what is tender.