难者不会 会者不难?

[coykiesaol]

难者不会，会者不难
From words only:
难is difficult, 者 is empty word, 不会 is unable.
会 is able, 者 is empty word, 不难 is not difficult or easy.
It means it is unable because it is difficult and if it is easy, then it is able.
From meaning:
认为困难的人是因为他不会做这件事，而会做这件事的人则认为它不难。
If you think sth is difficult because you can not do it, the same thing, if you are able to do it, then you will think it is easy.
In fact, this sentence is from archaic Chinese(文言文).
The first 难 is adj in modern Chinese, but here(archaic Chinese) it is verb meaning 认为难 think it is difficult.
者 means 的人，some person
The first 会 is verb, means can, able
The second 会 is 认为会，think it is able.
The second 难 is adj, means difficult.