Now I re-examine philosophies and religions, They may prove well in lecture-rooms, yet not prove at all under the spacious clouds and along the landscape and flowing currents.
如今我重新审视哲学与宗教;它们或许在讲堂里成立,却未必经得起辽阔云天下、山川间与流水旁的检验。
— Walt Whitman · Song of the Open Road · Leaves of Grass —