make a mountain out of a molehill

cannot make it

Cannot reach satisfactory or expected standards or do something competently; describes someone in a hopeless situation.

doctors make the worst patients

It is difficult to advise people on subjects that they are experts on.

enough to make a cat laugh

Very outlandish or outrageous.

enough to make the angels weep

Something so distressing that it causes one to lose hope and faith.

fine feathers make fine birds

Something that appears beautiful or good is by definition beautiful or good.

have a mountain to climb

To face a difficult task or challenge.

it takes all kinds to make a world

Diversity is essential: the world would be incomplete if everyone were alike; an expression of surprise at a person or people's eccentricity.

it takes two to make a quarrel

It takes two or more people to cause a quarrel; one cannot blame an argument entirely on the other side.