No one needs no repetition, no practice, no improvement, all at once can be done. The overestimation of one's self is terrible: it delays one's own progress and hinders one's own wisdom.

没有人无需重复，无需练习，无需改进，一下子就可以做到极致。人对自己的高估是很可怕：既耽误自己的上进，也妨碍自己的明智。