《韩非子·说难》
大凡进说的困难：不是难在我的才智能够用来向君主进说，也不是难在我的口才能够阐明我的意见，也不是难在我敢毫无顾忌地把看法全部说出来。
凡说之难：非吾知之有以说之之难也，又非吾辩之能明吾意之难也，又非吾敢横失而能尽之难也。
Generally speaking, the difficulty of making representations: It’s not difficult for me to have the talent to present to the king, it’s not difficult for me to have the eloquence to make my points clear, and it’s not difficult for me to have the courage to express all my views without reservation.