The universe is not only stranger than we imagine, it is stranger than we can imagine.
The best time to plant a tree was 20 years ago; the second-best time is now.
The Erdős discrepancy problem fascinated me because it was so simple to state yet so deep in its implications.
"We sleep safe in our beds because rough men stand ready in the night to visit violence on those who would do us harm."
对于宇宙的认知需要超越感官，通过理性的推理和思考来达到更深的层次。