秀才不出门，能知天下事
xiù​cai​bù​chū​mén​néng​zhī​tiān​xià​shì

a scholar can know everything without traveling

秀才不出门，能知天下事 秀才不出門，能知天下事 xiù​cai​bù​chū​mén​néng​zhī​tiān​xià​shì
a scholar can know everything without traveling
a person of learning can know everything happening in the world even without leaving home; it suggests that through books and study one can gain broad knowledge of the world