weliswaar ... maar ...
This structure is used to concede one point and then present a contrast or stronger main point. It is common in careful written Dutch and helps you sound balanced rather than blunt. You can reuse it whenever you want to say 'although X is true, Y is more important.' Example: "De route was weliswaar zwaar, maar hij liep sneller dan verwacht." This means 'The route was heavy/arduous, but he ran faster than expected.' It first acknowledges difficulty, then highlights the result.
De route was weliswaar zwaar, maar hij liep sneller dan verwacht.
The route was difficult, but he ran faster than expected.
