In a start-up company, you basically throw out all assumptions every three weeks.

I do not know how wicked American millionaires are, but as I travel about and see the results of their generosity in the form of hospitals, churches, public libraries, universities, parks, recreation grounds, art museums and theatres I wonder what on earth we should do without them.

I find daily life not always joyous, but always interesting. I have some sad days and nights, but none that are dull. As I advance deeper into the vale of years, I live with constantly increasing gusto and excitement. I am sure it all means something; in the last analysis, I am an optimist because I believe in God. Those who have no faith are quite naturally pessimists and I do not blame them.

Real happiness is not dependent on external things. The pond is fed from within. The kind of happiness that stays with you is the happiness that springs from inward thoughts and emotions. You must cultivate your mind if you wish to achieve enduring happiness.

Whenever it is in any way possible, every boy and girl should choose as his life work some occupation which he should like to do anyhow, even if he did not need the money.

The highest happiness on earth is the happiness of marriage.

I divide all readers into two classes: those who read to remember and those who read to forget.