John Harrison

“One of the principal Causes of the Errors in common Pendulum-Clocks is the Irregularity of the Motion, which is transmitted through the Wheels.”

“I think I may say I have got her in the humour to go, and that she will deal very honestly by you in the future.”

“This is a plain and simple truth; and I heartily wish I had had a little more money to have gone on with the improvements I have made.”

“I can now be certain, to one minute of time in a month.”