素質

1. Origins, structure, and basic meaning

• Structure: 素質, read そしつ, means an inborn aptitude or potential that can develop into ability in a particular role.
• Basic usage: A teacher may recognize the makings of a leader in a student, though that potential does not replace daily practice.

2. Common pitfalls and similar expressions

• Inborn potential versus current 能力
  • 素質 emphasizes an underlying aptitude that may develop into skill. 能力 emphasizes an ability a person currently has or can demonstrate, so practice can turn aptitude into usable ability.