I get a feeling of satisfaction when I invest my energy in worthwhile causes that bring benefit to the world.

Growing up, my parents always emphasized that it is worthwhile to expend time and energy to achieve a good education.

It may be worthwhile to remind Jack that as an employee he better make it his business to arrive to work on time.

I questioned whether it was worthwhile to buy property in London where the prices are so expensive.

After working long hours and making little money I came to the conclusion that it simply was not worthwhile.