历史感不仅包含对过去之过去的感知，还包含对过去之现在的感知。
The historical sense involves a perception, not only of the pastness of the past, but of its presence.
You have to be willing to challenge the status quo if you want to make real progress.
The only relationship that can make both partners happy is one in which sentimentality has no place and neither partner makes any claim on the life and freedom of the other.
"The changes we dread most may contain our salvation."
