If Hume has the materials why did he fail to build up a system from them?
The answer seems twofold.

In part it is the man himself.

His genius, as his metaphysics show, lay essentially in his power of destruction; and the man who gave solipsism to philosophy was not likely to effect a new creation in politics.

In part, also, the condition of the time gave little stimulus to novelty.

Herein Hume was born a generation too early.