They are the most adventurous of the zodiac signs.
They are the only sign who genuinely experiences discomfort in their "comfort zone."
A sun-ruled fire sign is almost too terrifying to contemplate. Leo the Lionhearted awakens with a thunderous growl every morning.
Although they may not be the most clever of the zodiac signs (see Aquarius below), they are deemed the most likely to achieve based only on their courage.
Aquarius, unlike the three other fire signs on this list, is an air sign. Yet, in this context, "air" does not refer to flakiness; rather, it signifies effortlessness.
Their sharp, unrivalled, and almost machine-like analytic abilities give them a calm assurance that never comes across as arrogant.
They are endowed by the heavens with an irrepressible, unbreakable optimism that dispels dread like sunlight dispels nighttime.
The alignment of the planets has granted them unwavering confidence that allows them to regard problems as opportunities.