The government, Professor, is not an endless source of funds.

A simple sphere was an endless source of inspiration and activity.

Don't forget, I no longer have an endless source of cards.

An endless source of amusement to children, the wall is an exhibition in itself.

And lately she has found an endless source of material: her campaign for governor.

They are just an endless source of inspiration and excitement.

It is an endless source of renewable human energy and creativity.

The girl was an endless source of amazement to Nancy.

Water has become an endless source of both splendor and stress.

The Internet is a vast and seemingly endless source of information.