Answer:
correlation between grades and success in life. The only correlation found was between grades and academic success. In other words, for those who aspire to academic studies, scores predict success.
A lair is a <span>hideout,
a scabbard is a </span><span>sheath for a sword,
a hilt is a handle of a sword,
a complacent person is someone who is not eager to please,
while a covetous person is someone who is eager to obtain or posses,
All of these can be found in dictionaries, and you made a typo by writing liar instead of a lair.
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Yin and yang, good and bad. the right handed twin being evil and chaos, and the left, goodness and purity.