Anton Chekhov
Man has been endowed with reason, with the power to create, so that he can add to what he's been given. But up to now he hasn't been a creator, only a destroyer. Forests keep disappearing, rivers dry up, wild life's become extinct, the climate's ruined and the land grows poorer and uglier every day.
Perhaps the feelings that we experience when we are in love represent a normal state. Being in love shows a person who he should be.