John Kenneth MacKenzie (25 August 1850 – 1 April 1888) was an English medical missionary to China. I’m sure he encountered many difficulties that could have discouraged him. Yet, in this quote, I can see that walking with Jesus kept his attitude positive.
“My position has come to this, Am I living near my Savior?; then I am as happy as the day is long, and as light-hearted as a child. It may be that I have plenty of annoyances, but they don’t trouble me when His presence is with me. Am I downcast and worried?: then I am away from God.”