Ramayana
पश्य तावन्महाबाहो राक्षसेश्वर मानुषम् । मूढमेवं विचित्रार्थं यस्य न ज्ञायते गतिः ॥ 7-20-12 ॥
"Look then, O mighty-armed lord of the Rakshasas, at mankind—deluded thus, of strange and varied ways, whose course cannot be known."
english translation