Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Easy and thought provoking...

...I have been nervous about Bonhoeffer's work until I picked up this slim volume. Although it is meant to be read day by day, I finished it in under two hours. Bonhoeffer was so uplifting, despite his final days, and this book perfectly takes his thoughts and compresses them into enough snippets that make you want to read more. I am a curious layperson who strongly recommends this little book with big ideas.