Sophocles

Money is the worst currency that ever grew among mankind. This sacks cities, this drives men from their homes, this teaches and corrupts the worthiest minds to turn base deeds.

Hide nothing, for time, which sees all and hears all, exposes all.  

Hush! Check those words. Do not cure ill with ill and make your pain still heavier than it is.

I see that all of us who live are nothing but images or insubstantial shadow.

I would prefer even to fail with honor than win by cheating.

If it were possible to cure evils by lamentation and to raise the dead with tears, then gold would be a less valuable thing than weeping.

Much speech is one thing, well-timed speech is another.

Much wisdom often goes with fewest words.

No enemy is worse than bad advice.

No lie ever reaches old age.

No one longs to live more than someone growing old.

No speech can stain what is noble by nature.