Mystic Kabir says in one of his Ulatbansiyan ( ie paradoxical couplets with spiritual messages for real seekers)
सगरी दुनिया भई सयानी, एक मैं ही बौराया।
Means people of whole world have become wiser and I am the only one mad among them.

(It is because for spiritual person it is dangerous to call all others as stupid, as together they can kill anybody who is against them)