What is the best thing that money can buy?
Time. More specifically, you can generally choose to pay extra to avoid dealing with those aspects of life that you find tedious, boring or offensive.
This leaves you with more time for those activities that are meaningful, fun and pleasant.
The most obvious example is that if there's something else you'd rather be doing in the hours you currently work, you could stop doing that. But you can also hire people to take care of other jobs you'd rather live without such as washing and ironing clothes, painting your garage or buying groceries. (of course if you ENJOY any of these activities, you can still do them)
Nothing else matters when you have an empty stomach.
Be it a bowl of boiled rice or a scrumptious pizza, food is absolutely the first best thing we can get with money.
I know that people say Money can't buy Happiness, but still bear with me for a little while.
Money can buy happiness. It depends on how you spend it.
If you spend it on shopping or for fulfilling your materialistic desires, then definitely, you will not have long lasting happiness.
Try helping those who don't even have the basic amenities of life.
Try to bring smile on the face of a hungry child on the street.
Spending your money for charity can buy eternal happiness for you as well as the person you helped.
The best thing money can buy is freedom from the fantasy that money will make you happy.