The most useless are those who never change through the years.
Sentiment: NEGATIVE
Only useless things are indispensable.
The production of too many useful things results in too many useless people.
Most of our assumptions have outlived their uselessness.
Just because somebody makes a mistake doesn't make them useless.
There is nothing so useless as doing efficiently that which should not be done at all.
Wealth, beauty, and fame are transient. When those are gone, little is left except the need to be useful.
It is useless to contend with the irresistible power of Time, which goes on continually creating by a process of constant destruction.
Just because something doesn't do what you planned it to do doesn't mean it's useless.
I know a lot about a few things - mostly useless things.
A useless life is an early death.