Living in the Present

I find that CS Lewis has written many thought provoking essays. Here's an excerpt;

Never, in peace or war, commit your virtue or your happiness to the future. Happy work is best done by the man who takes his long-term plans somewhat lightly and works from moment to moment 'as to the Lord.' It is only our daily bread that we are encouraged to ask for. The present is the only time in which any duty can be done or any grace received.
                                                                        ~Transposition and Other Addresses, ch. 4

Leo Tolstoy in his book, Wise Thoughts for Every Day, writes;

We divide time into three parts; the past, the present and the future. In reality, there is only a tiny point at which the future meets the past, and while this point may seem small, it is where our entire lives are concentrated.