Great quote on providence

I'm not really sure what the title of this book is; I feel kinda silly even admitting that, but it's hard to figure out just from looking at the cover. ANYway, part of the book is called The Life of Susannah Spurgeon by Charles Ray. Mrs. Spurgeon wrote:

It is a mercy that our lives are not left for us to plan, but that our Father chooses for us; else might we sometimes turn away from our best blessings, and put from us the choicest and loveliest gifts of his providence.