第三，一个坚强的性格和意志力也是需要的。

Thirdly, , a strong character and will-power are also need.

youdao

每一个人都钦佩她坚强的性格和决心。

Everyone admires her strength of character and determination.

《牛津词典》

做一个杰出的人，光有一个善推理的头脑不够的，还要有坚强的性格。

To be an outstanding man, only a reasonable head is not enough, strong temperament is required.

youdao