If one learns without thinking, one will be lost in his learning. That is, if one does not think about what one learns, he will not arrive at the truth of it.

gentle / equalize / equally

a type of interstellar cloud that is so dense that it obscures light from background stars; a dark nebula

athlete (A person who actively participates in physical sports, possibly highly skilled in sports)

The red thread of fate, believed to bind soulmates.

North Kingstown

one who is bad at athletics, one who has poor athletics skill

motor nerves / (figuratively) reflexes

暗黒星雲: a type of interstellar cloud that is so dense that it obscures light from background stars; a dark nebula

Jeffersontown (a city in Kentucky, United States)