Isocrate

"The greatest thing in the small compass is a sound mind in a human body. Strive with all your body to be a lover of toil, and with your soul to be a lover of wisdom, in order that with the one you may…"

"Do not be surprised that many things which I have said do not apply to your at your present age. For I also have not overlooked this fact, but I have deliberately chosen to employ this one treatise, n…"

"If you love knowledge, you will be a master of knowledge. What you have come to know, preserve by exercise; what you have not learned, seek to add to your knowledge; for it is as reprehensible to hear…"

"With these examples before you, you should aspire to nobility of character, and not only abide by what I have said, but acquaint yourself with the best things in the poets as well, and learn from the …"

"Be more careful in guarding against censure than against danger; for the wicked may well dread the end of life, but good men should dread ignominy during life. Strive by all means to live in security,…"

"Plutarch", Life of Isocrates"

"Consider that nothing in human life is stable; for then you will not exult overmuch in prosperity, nor grieve overmuch in adversity. Rejoice over the good things which come to you, but grieve in moder…"

"Always when you are about to say anything, first weigh it in your mind; for with many the tongue outruns the thought. Let there be but two occasions for speech — when the subject is one which you thor…"