All is not gold that glitters.

（But gold will glitter forever.) But gold will always shine.

{apples and oranges} are irrelevant.

(time and tidy wait for no man)Time waits for no man.

(to kill two birds with one stone.) kill two birds with one stone.

(to look for a needle in a haystack.)Look for a needle in a haystack.

(Failure is the mother of success.) Failure is the mother of success.

(As we sow, so shall we reap.) If you sow melons, you will reap melons; if you sow beans, you will reap beans.