Passion* =  a strong feeling of enthusiasm or excitement for something or about doing something

Purpose = the aim or intention of doing something for a higher cause than oneself

According to research, which wins? Which will lead to more success and happiness?

Conducting work with strong purpose will always win over simple passion.

But of course, the ultimate work includes both passion and purpose!

*Merriam Webster dictionary definition

Source: Dan Heath, The Power of Moments