[无的放矢 / 無的放矢, wú dì fàng shǐㄨˊ ㄉㄧˋ ㄈㄤˋ ㄕˇ] to shoot without aim (成语 saw); fig. to speak without thinking; firing blindly; to shoot in the air; a shot in the dark#73356
[学而不思则罔,思而不学则殆 / 學而不思則罔,思而不學則殆, xué ér bù sī zé wǎng, sī ér bù xué zé dàiㄒㄩㄝˊ ㄦˊ ㄅㄨˋ ㄙ ㄗㄜˊ ㄨㄤˇ, ㄙ ㄦˊ ㄅㄨˋ ㄒㄩㄝˊ ㄗㄜˊ ㄉㄞˋ] To learn without thinking is blindness; to think without learning is idleness (Confucius).; Learning without reasoning leads to confusion; thinking without learning is wasted effort.