I do think a carpenter needs a good hammer to bang in the nail.

You don't need a $30 hammer to nail in a picture.

If all you have is a hammer, everything looks like a nail.

All I can say is that those nails dodged the hammer a lot. I would not hire Walton and Artis to work on my house.

Every Fedora issue became a nail for the foundation hammer, and the scope of the foundation quickly became too large for efficient progress.

If you only have a hammer, you tend to see every problem as a nail.