As I am essentially a persistent plodder in life I found this quote of great encouragement. (Originally sourced here).
“Two things urgently needed in ministers, if they would attempt great advances for the kingdom of Christ, are zeal and resolve. Their influence and power for impact are greater than we think. A man of ordinary abilities will accomplish more with zeal and resolve than a man ten times more gifted without zeal and resolve. . . . Men who are possessed by these qualities commonly carry the day in almost all affairs. Most of the great things that have been done in the world, the great revolutions that have been accomplished in the kingdoms and empires of the earth, have been primarily owing to zeal and resolve. The very appearance of a intensely engaged spirit, together with a fearless courage and unyielding resolve, in any person that has undertaken leadership in any human affair goes a long way toward accomplishing the intended outcome. . . . When people see a high degree of zeal and resolve in a person, it awes them and has a commanding influence upon them. . . . But while we are cold and heartless and only go on in a dull manner, in an old formal round, we will never accomplish anything great. Our efforts, when they display such coldness and irresolution, will not even make people think of yielding. . . . The appearance of such indifference and cowardice does, as it were, provoke opposition.”
Jonathan Edwards, “What must be done more directly to advance this work [of revival],” Works (Edinburgh, 1979), I:424. Wording updated.