Euripides said this quote

Stronger than lover's love is lover's hate. Incurable, in each, the wounds they make.

~ Euripides

The fiercest anger of all, the most incurable,Is that which rages in the place of dearest love.

~ Euripides

What mortal claims, by searching to the utmost limit, to have found out the nature of God, or of his opposite, or of that which comes between, seeing as he doth this world of man tossed to and fro by waves of contradiction and strange vicissitudes?

~ Euripides

Who knoweth if to die be but to live, and that called life by mortals be but death?

~ Euripides