This principle covers the concept of man building a house for himself for protection and eventually improving it with time as his intellect increases and/or evolves.

This seems to be referring to the principle of progression or evolution. This principle is often used in various fields such as sociology, psychology, and anthropology to explain how humans have evolved over time, not just physically but also intellectually and socially.

Here's a step-by-step breakdown:

1. The concept begins with a man building a house for protection. This represents the basic human need for safety and shelter, which is a fundamental aspect of human survival.

2. The man then improves the house over time. This represents the human capacity for learning, adaptation, and improvement. It shows that humans are not static beings, but are capable of change and growth.

3. The improvements are linked to an increase or evolution in the man's intellect. This suggests that as humans become more intelligent, they also become more capable of creating and utilizing more complex tools, systems, and structures.

4. This principle therefore covers the concept of human progression or evolution, highlighting how our abilities and creations (in this case, the house) evolve alongside us.