It is hard to imagine that this little book could be so persuasive. I consider it a classic, and an early precusor to many others that have attempted to demonstrate how time is our own and ours to manage and expand our boundaries of our selves. In the thirty minutes it takes to read, you will be left forever vigilant, and will never sit idle, unless you consciously choose to sit idle, while you ride a train, wait for plane, or drive home from what once may have been a routine. Read it, study it, and live again.