Thirst for
Definition 1 of 2
Pro Tip 1/3Emotional Intensity
Indicates a deep emotional need, not just a casual want. 
Her thirst for approval often led her to go above and beyond.
Pro Tip 2/3Metaphorical Use
Used metaphorically to express desires, not actual thirst. 
The explorer's thirst for discovery took him to remote corners of the earth.
Pro Tip 3/3Often Positive
Frequently seen as a positive attribute, showing ambition or passion. 
Her thirst for success made her the top salesperson in the company.