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 … - Isocrates

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, but if ever it falls to your lot to face the dangers of battle, seek to preserve your life, but with honour and not with disgrace; for death is the sentence which fate has passed on all mankind, but to die nobly is the special honour with nature has reserved for the good.

So far has Athens left the rest of mankind behind in thought and expression that her pupils have become the teachers of the world, and she has made the name of Hellas distinctive no longer of race but of intellect, and the title of Hellene a badge of education rather than of common descent.

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 moderation over the evils which befall you, and in either case do not expose your heart to others; for it were strange to hide away one's treasure in the house, and yet walk about laying bare one's feelings to the world.