"Never try to take a fortified hill, especially if the Army on top is bigger than you are"

In this quote, William Redington Hewlett is cautioning against attempting to dominate a prepared hill, particularly if the opposing army is bigger in size. This can be interpreted as a caution against handling challenges that are beyond one's capabilities. Just like trying to take a prepared hill with a smaller army would be a challenging and possibly harmful task, trying to achieve something that is beyond one's means or resources can lead to failure and prospective harm. It is a tip to be sensible and tactical in our actions, and to not underestimate the strength and power of our opponents.