Quotes by Greek Authors

Old loves are dropped when new ones come
Euripides
Mortal fate is hard. You'd best get used to it.
Euripides
It is terrible to speak well and be wrong.
Sophocles
No one is happy all his life long.
Euripides
There's such an intimate kind of beauty in the act of listening to music being created right in front of your eyes, watching the notes fly off the performers' fingertips, the night enveloping you like a blanket. 
M.C. Frank
Good fortune will elevate even petty minds, and gives them the appearance of a certain greatness and stateliness, as from their high place they look down upon the world; but the truly noble and resolved spirit raises itself, and becomes more conspicuous in times of disaster and ill fortune...
Plutarch
Everywhere man blames nature and fate, yet his fate is mostly but the echo of his character and passions, his mistakes and weaknesses.
Democritus
At morn we buried Melanippus; as the sun set the maiden Basilo died by her own hand, as she could not endure to lay her brother on the pyre and live; and the house beheld a two-fold woe, and all Cyrene bowed her head, to see the home of happy children made desolate.
allimachus and Lycophron CXLII
These two oo in "book" are like the two eyes of a reader who fell in love with a story.
Stefanos Livos
Fables should be taught as fables, myths as myths, and miracles as poetic fancies. To teach superstitions as truths is a most terrible thing. The child mind accepts and believes them, and only through great pain and perhaps tragedy can he be in after years relieved of them. In fact, men will fight for a superstition quite as quickly as for a living truth — often more so, since a superstition is so intangible you cannot get at it to refute it, but truth is a point of view, and so is changeable.
Hypatia
The superstitious man wishes he did not believe in gods, as the atheist does not, but fears to disbelieve in them.
Plutarch
The greatest wealth is to live content with little.
Plato
A straight line is said to have been cut in extreme and mean ratio when, as the whole line is to the greater segment, so is the greater to the lesser.
Euclid
… the fisherman’s daughter grinding serenity in her coffee grinder.
Yiannis Ritsos