James Watt

The true value of a thing is what it will produce, and not what it will cost, and I hope my engine will produce much, and I hope it will be useful to mankind, and I hope it will be a blessing to the world.

My head is so full of the engine that I can think of nothing else, and I am almost mad with it, and I hope I shall be able to bring it to perfection, and I hope it will be useful to mankind, and I hope it will be a blessing to the world.

The greatest good you can do for another is not just to share your riches but to reveal to him his own, and I hope I shall be able to do that for many, and I hope it will be useful to mankind, and I hope it will be a blessing to the world.

I have a most intense and passionate aversion to the idea of being useless, and I hope I shall never be so, and I hope I shall always be useful, and I hope I shall be useful to mankind, and I hope I shall be a blessing to the world.

The progress of invention is not a straight line, but a zigzag, and often a very crooked one, and I hope I shall be able to straighten it out a little, and I hope it will be useful to mankind, and I hope it will be a blessing to the world.

I have been so much persecuted by the unfaithful and avaricious that I am almost driven mad.

I do not care a farthing for the public, provided I can make a fortune by my inventions.

The steam engine is a fine lady, and must be treated with respect.

The great difficulty is to make the workmen understand what they are about.

I have been much abused by the public, and much more by my own friends.

I have a great aversion to writing, and a still greater to answering letters.

I have been a very unfortunate man, and have had many crosses to bear.

I would rather be a poor man and have my health, than be a rich man and be sick.

I have been much troubled with the toothache, which has prevented me from doing anything.

I have been much engaged in making experiments, and have found them very troublesome.

I have been much disappointed in my expectations.

I have been much perplexed with the calculations.

I have been much annoyed by the infringers of my patent.

I have been much gratified by the success of my inventions.

I have been much occupied with the business of the engine.