The world is a book, and those who do not travel read only a page.
Every book is a quotation; and every house is a quotation out of all forests, and mines, and stone quarries; and every man is a quotation from all his ancestors.
在我们这个发人深省的时代，最发人深省的是我们仍然没有在思考。
The melancholy science from which I make this offering to my friend relates to a region that from time immemorial was regarded as the true field of philosophy, but which, since the latter's conversion into method, has lapsed into intellectual neglect, sententious whimsy, and finally oblivion.
The best time to start taking control of your life is now.
Life is measured by thought and action，not by time.