We Love God!

God: "I looked for someone to take a stand for me, and stand in the gap" (Ezekiel 22:30)

The present benefit of spiritual discipline is a fulfilled, God-blessed, fruitful, and useful life. If you get involved in spiritual gymnastics, the blessings of godliness will carry on into eternity. Although many people spend far more time exercising their bodies than their souls, the excellent servant of Jesus Christ realizes that spiritual discipline is a priority.
John MacArthur

Treat the book as a notepad with printed words. In other words, write in your books. Make the book your own by marking points of agreement and disagreement, highlighting particularly important sections of text, and underlining and diagraming where helpful. Unless your specific copy of the book has some historical or emotional value, mark it up with abandon.
Albert Mohler