What do the following proverbs mean?

- You can't make a silk purse out of a sow's ear

- A hyena cannot know its own stench

- A house divided against itself cannot stand

- You'll never plow a field by turning it over in your mind

- No wind, no waves

- People who live in glass houses shouldn't throw stones

1. You can't make a silk purse out of a sow's ear - you cannot create a fine product from bad materials.

3. A house divided against itself cannot stand - if the members of a group fight each other, the group will disintegrate

6. People who live in glass houses shouldn't throw stones - do not criticize others if you have similar weaknesses yourself.

You'll never plow a field by turning it over in your mind means that the only way to get something done is to do it, not think it.