Some of these, Hercules destroyed and cut off in his passage through these countries; but some escaping his notice while he was passing by, fled and hid themselves, or else were spared by him in contempt of their abject submission: and after that Hercules fell into misfortune, and, having slain Iphitus, retired to Lydia, and for a long time was there slave to Omphale, a punishment which he had imposed upon himself for the murder: then, indeed, Lydia enjoyed high peace and security, but in Greece and the countries about it the like villainies again revived and broke out, there being none to repress or chastise them.
It was therefore a very hazardous journey to travel by land from Athens to Peloponnesus; and Pittheus giving him an exact account of each of the robbers and villains, their strength, and the cruelty they used to all strangers, tried to persuade Theseus to go by sea. But he, it seems, had long since been secretly fired by the glory of Hercules, held him in the highest estimation, and was never more satisfied than in listening to any that gave an account of him; especially those that had seen him or had been present at any action or saying of his. So that he was altogether in the same state of feeling as, in after ages, Themistocles was, when he said that he could not sleep for the trophy of Miltiades; entertaining such admiration for the virtue of Hercules, that in the night his dreams were all of that hero's actions, and in the day a continual emulation stirred him up to perform the like. Besides, they were related, being born of cousins-german. For Aethra was daughter of Pittheus, and Alcmena of Lysidice; and Lysidice and Pittheus were brother and sister, children of Hippodamia and Pelops. He thought it therefore a dishonourable thing, and not to be endured, that Hercules should go out everywhere, and purge both land and sea from wicked men, and he himself should fly from the like adventures that actually came in his way; disgracing his reputed father by a mean flight by sea, and not showing his true one as good evidence of the greatness of his birth by noble and worthy actions, as by the token that he brought with him the shoes and the sword.
With this mind and these thoughts, he set forward with a design to do injury to nobody, but to repel and revenge himself of all those that should offer any. And first of all, in a set combat, he slew Periphetes, in the neighbourhood of Epidaurus, who used a club for his arms, and from thence had the name of Corynetes, or the club-bearer;who seized upon him, and forbade him to go forward in his journey.
Being pleased with the club, he took it, and made it his weapon, continuing to use it as Hercules did the lion's skin, on whose shoulders that served to prove how huge a beast he had killed; and to the same end Theseus carried about him this club; overcome indeed by him, but now in his hands, invincible.
Passing on further towards the Isthmus of Peloponnesus, he slew Sinnis, often surnamed the Bender of Pines, after the same manner in which he himself had destroyed many others before. And this he did without having either practised or ever learnt the art of bending these trees, to show that natural strength is above all art. This Sinnis had a daughter of remarkable beauty and stature, called Perigune, who, when her father was killed, fled, and was sought after everywhere by Theseus; and coming into a place overgrown with brushwood, shrubs, and asparagus-thorn, there, in a childlike innocent manner, prayed and begged them, as if they understood her, to give her shelter, with vows that if she escaped she would never cut them down nor burn them. But Theseus calling upon her, and giving her his promise that he would use her with respect, and offer her no injury, she came forth, and in due time bore him a son, named Melanippus;but afterwards was married to Deioneus, the son of Eurytus, the Oechalian, Theseus himself giving her to him. Ioxus, the son of this Melanippus, who was born to Theseus, accompanied Ornytus in the colony that he carried with him into Caria, whence it is a family usage amongst the people called Ioxids, both male and female, never to burn either shrubs or asparagus-thorn, but to respect and honour them.