"The Complete Pythagoras, an on-line book containing all survived biographies and Pythagorean fragments."

“It is better wither to be silent, or to say things of more value than silence. Sooner throw a pearl at hazard than an idle or useless word; and do not say a little in many words, but a great deal in a few.”

“Dear youths, I warn you cherish peace divine, And in your hearts lay deep these words of mine.”

“The most momentous thing in human life is the art of winning the soul to good or to evil.”

“When going to the temple to adore Divinity neither say nor do any thing in the interim pertaining to the common affairs of life.”

“Attempt nothing above thy strength!”

“Pythagoras and Pythagoreanism, The Catholic Encyclopedia”