Используйте «sift out» в предложении

1. and even then sift out all memories for they will mislead you

2. This careful self-censoring is supposedly done to sift out flawed and mistaken theories

3. They are not meaningless; they are just so poisoned and twisted and corrupted by undead filth invading your dream, that unless you find out WHO: WHICH undead entities are poisoning your dream, and WHAT their agenda is, and WHY they are poisoning your dream, and what THEIR subconscious insane urges and addictions and fears and hatreds are: you will never be able to sift out the part of your dreams that come from you, and the parts that are poisoned by them

4. Each one had some good ideas; none of them were intelligent enough to sift out all the bad ideas and put all the good ones together for a simple reason: all of them were poisoned by undead entities who were doing everything in their power to ruin everything these fanatical Jewish sects tried to create