A good, satisfying job can be the product of years of education.
一个理想而令人满意的工作,是在接受几年的教育之下才能获得的。
Poison to a snake is merely a luxury; it enables it to get its food with very little effort, no more effort than one bite.
毒液对毒蛇来说只不过是一种舒适生存的优越手段,它使蛇不用费多大力气就能捕获到食物,轻咬一口即可。