A thousand Horse-sacrifices and Truth were once weighed in the balance. It was seen that Truth weighed heavier than a thousand. Horsesacrifices.
अश्वमेधसहस्रं च सत्यं च तुलया धृतम्। अश्वमेधसहस्राद्धि सत्यमेव विशिष्यते॥