Joy in the universe, and keen curiosity about it all - that has been my religion. religion
The smallest deed is better than the greatest intention. wisdom
Leap, and the net will appear. motivation
The secret of happiness is something to do. happiness
I go to nature to be soothed and healed, and to have my senses put in order. nature
Nature teaches more than she preaches. There are no sermons in stones. It is easier to get a spark out of a stone than a moral. nature
A man can get discouraged many times but he is not a failure until he begins to blame somebody else and stops trying. failure
The Kingdom of Heaven is not a place, but a state of mind. religion
If you think you can do it, you can. motivation
Science has done more for the development of western civilization in one hundred years than Christianity did in eighteen hundred years. science
A man can fail many times, but he isn't a failure until he begins to blame somebody else. failure
The lure of the distant and the difficult is deceptive. The great opportunity is where you are. greatness
If we take science as our sole guide, if we accept and hold fast that alone which is verifiable, the old theology must go. being alone & science
I seldom go into a natural history museum without feeling as if I were attending a funeral. history
Travel and society polish one, but a rolling stone gathers no moss, and a little moss is a good thing on a man. society & travel
To me - old age is always ten years older than I am. aging & birthday
To treat your facts with imagination is one thing, to imagine your facts is another. imagination