The dead are never really gone, they just change form.
如果一个人只希望幸福,这很容易实现;但我们希望比别人更幸福,这总是困难的,因为我们相信别人比他们实际更幸福。
An invention can be so valuable as to be worthless to the inventor.
我不为别人的认可而活。我为自己而活。