The Golden Sayings of Epictetus by Epictitus Part 6 Page 8

LVII

That was a good reply which Diogenes made to a man who asked him for letters of recommendation. — ”That you are a man, he will know when he sees you; — whether a good or bad one, he will know if he has any skill in discerning the good and the bad. But if he has none, he will never know, though I write to him a thousand times.” — It is as though a piece of silver money desired to be recommended to some one to be tested. If the man be a good judge of silver, he will know: the coin will tell its own tale.

LVIII

Even as the traveller asks his way of him that he meets, inclined in no wise to bear to the right rather than to the left (for he desires only the way leading whither he would go), so should we come unto God