A worker may be the hammer's master, but the hammer still prevails. A tool knows exactly how it is meant to be handled, while the user of the tool can only have an approximate idea.
Sentiment: POSITIVE
If you only have a hammer, you tend to see every problem as a nail.
The difference between a tool and a machine is not capable of very precise distinction; nor is it necessary, in a popular explanation of those terms, to limit very strictly their acceptation.
A tool is usually more simple than a machine; it is generally used with the hand, whilst a machine is frequently moved by animal or steam power.
There is a joke that your hammer will always find nails to hit. I find that perfectly acceptable.
By the work one knows the workman.
I do think a carpenter needs a good hammer to bang in the nail.
It is better to be the hammer than the anvil.
Genius is always allowed some leeway, once the hammer has been pried from its hands and the blood has been cleaned up.
Any tool is a weapon if you hold it right.
In this world a man must either be anvil or hammer.