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Light is the most important material in architecture.
To this war of every man against every man, this also in consequent; that nothing can be unjust.The notions of right and wrong, justice and injustice, have there no place.Where there is no common power, there is no law: where no law, no injustice.
The Erdős discrepancy problem fascinated me because it was so simple to state yet so deep in its implications.
好老师不是注满一桶水,而是点燃一把火。
Spiritual science does not want to overthrow the results of natural science, but to complete them.