Stop carrying the weight of the world on your shoulders.
别太操心了,没有你地球照样转。 (carry the weight of the world on one’s shoulders:自以为重任在肩。)
but a medicine that had worked so well in one form of illness would surely be of equal benefit in another,
只知道一种药对一种病有好处,肯定对另一种病也会有好处。