Summary
This quote suggests that common sense is as uncommon as genius. It implies that having common sense is the foundation of true genius. In other words, possessing common sense is a prerequisite for achieving greatness or showing exceptional intelligence. It highlights the importance of logical reasoning, practical thinking, and having a sound judgement in one's pursuit of brilliance. Just as genius is extraordinary and scarce, common sense is equally rare but acts as a fundamental element for the development and manifestation of genius.