"The city’s poor are like the roots of a tree; unseen, but essential to its life."

译文：教育小孩子应该严格一点，严肃的作风可以平息孩子心中的浮躁之气；对待小人应该恭敬，端敬的态度可以令小人们收敛邪恶之心。赏析：父母教育孩子不应该有求必应，宠溺无度，因为惯子如杀子。我们不能和小人走得太近，和他们保持距离，在小人面前就要忍耐和恭敬，他们才不会心生邪恶，从而报复我们。小人心胸狭窄，鸡肠鼠肚，睚眦必报，和小人交往，无异于和豺狼同行。

幸福不在于自爱。

"Doubt is useful for a while. We must all pass through the garden of Gethsemane. If Christ played with doubt, so must we."

技术最大的敌人是惯性。

The human soul is a labyrinth, full of twists and turns, and we are all trying to find our way out.