JLPT N1
～てこそ
only by doing ~; it is precisely because ~ that
Structure / Usage
Verb (て-form) + こそ
Example Sentences
失敗してこそ、人は成長できるのだ。
It is precisely by failing that people can grow.
実際にやってみてこそ、その難しさが分かる。
Only by actually trying it can you understand how difficult it is.