Education is more than Pisa. Particularly musical education. We also need education and training for more than reasons of usefulness and marketability.

Besides, my usefulness here is destroyed because all of my friends think me a man of unsound mind.

Experiments were not attempted at that time, we did not believe in the usefulness of the concept anyway, and I finished my thesis in 1962 with a feeling like an artist balancing on a high rope without any interested spectators.

Usefulness! It is not a fascinating word, and the quality is not one of which the aspiring spirit can dream o' nights, yet on the stage it is the first thing to aim at.

Promptitude is not only a duty, but is also a part of good manners; it is favorable to fortune, reputation, influence, and usefulness; a little attention and energy will form the habit, so as to make it easy and delightful.

If all human lives depended upon their usefulness - as might be judged by certain standards - there would be a sudden and terrific mortality in the world.

I am aware of the usefulness of science to society and of the benefits society derives from it.

The usefulness of cow-peas and soy-beans as human food has been recognized only recently in this country.

The reason why I take my life is because I want to go to my wife and boy. My usefulness in this world is at an end. I can not be satisfied in any business and can not be without their companionship.

Blockchain assets derive value from their usefulness. Bitcoin has value because people value the payment network. BTC is required to use the network, so people demand it. If Bitcoin continues to be useful, it will continue to have value.

Most of the martial arts techniques go in waves of popularity and usefulness, but they all work.

Twitter's popularity and usefulness are mysteries to me.

There is no excellence without labor. One cannot dream oneself into either usefulness or happiness.

The difference between utility and utility plus beauty is the difference between telephone wires and the spiders web.

Utility is the great idol of the age, to which all powers must do service and all talents swear allegiance.

Success can corrupt; usefulness can only exalt.

A man cannot sleep in his cradle: whatever is useful must in the nature of life become useless.

It is a great misfortune to be of use to nobody; scarcely less to be of use to everybody.

We often despise what is most useful to us.

I have known some men possessed of good qualities which were very serviceable to others, but useless to themselves; like a sun-dial on the front of a house, to inform the neighbours and passengers, but not the owner within.