A quartet of good quotes

1.The true mystery of the world is the visible,not the invisible.-Oscar Wilde
2.Dying,losing,cheating and mediocrity is easy.Stay away from easy.-Scott Alexander
3.Emergencies have always been necessary to progress.It was darkness which produced the lamp.It was fog that produced the compass.It was hunger that drove us to exploration.And it took a depression to teach us the real value of a job.-Victor Hugo
4.Thinking is the most unhealthy thing in the world,and people die of it just as they die of any other disease.-Oscar Wilde