“Work like a lion” was my reply to a viewer: do not work like a machine for ten or twelve hours without stopping. Save your energy, focus your effort, act when it matters, then rest.
What I mean by the metaphor
The lion is an image for that rhythm. I am not offering a scientific account of animal behaviour or a fixed timetable for a working day. The point is to question the assumption that continuous activity is the same as useful work.
To put the idea into practice, name the result you want before you start. When you stop, ask what moved forward and what still needs attention. Those questions make the metaphor more concrete without adding another rule about how many hours everyone should work.
A real example from my own life
My experiment with a Nokia 3310 describes a specific attempt to change how I used my phone. That is a personal example of changing the conditions around attention. The lion post is the shorter principle: give effort a direction and leave room for a pause.