James Watt

Though I am not a man of letters, I hope I am a man of sense.

The steam engine is a machine for doing work.

I have been much employed in contriving a machine to answer the purpose of a steam engine.

The great object of the steam engine is to save fuel.

I have found that the quantity of steam consumed is nearly proportional to the quantity of water evaporated.

The separate condenser is the great improvement.

I have a most unwearied perseverance in any thing I set about.

The power of the engine is to be estimated by the number of pounds it can raise one foot high in a minute.

I have been much engaged in experiments on the steam engine, and have made some discoveries.

The steam engine is a prime mover, capable of being applied to a great variety of purposes.

I have a great many schemes in my head, but want time to execute them.

The great difficulty is to make the parts of the engine work together.

I have been much harassed by the difficulties attending the execution of my plans.

The steam engine is a machine of immense power, and capable of performing operations which no other machine can effect.

I have been much employed in making models and experiments.

The great object is to make the engine as simple and as cheap as possible.

I have been much engaged in the study of mechanics.

The steam engine is a machine which will be of great utility to mankind.

I have been much perplexed with the difficulties of the subject.

The great advantage of the steam engine is its universality.