The fact that knives get dull from work and horses die of it, should be interpreted. Its essence is that one shouldn't work everywhere, not a lot and not thoughtlessly, but only when the work is needed and in an effective and rational way, as dull knives and dead horses are not needed.
Look at work strategically. Salary and difficulties are not the main thing, the main thing-experience, training, Dating, reputation... The most valuable thing in the work is the opportunity to train your skills at someone else's expense.
It's impossible to be liked by everyone but it's important to list all people that should like you personally. This list should contain people important and influential for you, hence the ones who may influence your personal life, career and promotion.
Make sure you do easy things first. Today, one thing is easy and tomorrow something else is. If you are lucky, you will not have to do hard things at all. Easy things will be done magically and effectively, bringing you enormous profits.
The sententiosity about how one should work and go all out, is really harmful in itself. As doing things this way will lead to a person's fatigue and degradation. What's more, finally it will significantly slow down a person's efficiency. Spending 20% of time and efforts on work is the best variant as the remaining time and efforts should be spent on self-development, rest and sport.
There are exceptions to all laws, so, basically, you can apply any rule the other way round and see what happens. However, it would be more original to apply it differently rather than the other way round because truth is not a double-edged sword but a three-dimensional sphere.
You'll need social connections for your career, but where do you get them? Where to take them you will come up with yourself, but remember that you will interfere with fear, laziness, ignorance and lies. People like honest, courageous and useful in business people, and all others don't like.
Every person should have something special about himself. This something special helps differentiate among people. If a person has nothing special about him, he is hard to remember. He becomes invisible, so to say.
Success is something like a point and a universe at the same time. Success seems to be instantaneous, but the truth is that the universe has been created for decades. The point is that you build the universe in the dark, and success is just when the light is turned on and it illuminates the world already created before in the dark.