I am reading, Dear Timothy, Letters on Pastoral Ministry a great book for pastors young and old.
Here are some quotes I highlighted from Joel Beeke's chapter on the Puritans:
"Affliction is the diamond dust that heaven polishes jewels with." - Robert Leighton
"He that rides to be crowned need not think much of a rainy day." - John Trapp
"God's people are like bells, the harder they are hit, the better they sound" - John Bunyan
"Forget not, that the whole of your work is ministerial; not legislative - that you are not a lord in the church but a servant." - Abraham Booth