解读：不劳而获、投机取巧所得快乐转瞬即逝，唯有持续付出汗水与心血，攻克难题、实现目标，由此产生的快乐才扎实、长久，激励踏实奋斗。
如果你被困住了，去睡一觉。让你的潜意识来帮你解决问题。
The only way to escape the mundane is to constantly transform it.
It’s not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change.
No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.
