"My first encounter with Buddhist dharma would be in my early 20s. Like most young men, I was not particularly happy"

"The young man knows the rules, but the old man knows the exceptions"

"I feel happy to terrify kids"

"I was married to Margaret Joan Howe in 1940. Although not a scientist herself she has contributed more to my work than anyone else by providing a peaceful and happy home"

"Young men have a passion for regarding their elders as senile"

"Youth is not a question of years: one is young or old from birth"

"No man is happy who does not think himself so"

"In America the young are always ready to give to those who are older than themselves the full benefits of their inexperience"

"Try to be happy in this present moment, and put not off being so to a time to come, as though that time should be of another make from this which has already come and is ours"

"Happy is the person who knows what to remember of the past, what to enjoy in the present, and what to plan for in the future"

"Happiness is the only good. The time to be happy is now. The place to be happy is here. The way to be happy is to make others so"