There is no man living that can not do more than he thinks he can.
There are no big problems, there are just a lot of little problems.
Bull-markets are born on pessimism, grow on skepticism, mature on optimism and die on euphoria.
We can complain because rose bushes have thorns, or rejoice because thorn bushes have roses.
I believe any success in life is made by going into an area with a blind and furious optimism.
Tables turn, bridges burn, you live and learn.
An optimist is a person who sees a green light everywhere, while a pessimist sees only the red spotlight, the truly wise person is colorblind.
The man who will use his skill and constructive imagination to see how much he can give for a dollar, instead of how little he can give for a dollar, is bound to succeed.
What's really good is I'm riding really badly today. It's actually great because when I have a bad day it means I'm going to have a good day tomorrow.
I learned working with the negatives could make for better pictures.
No ray of sunshine is ever lost but the green that it awakens takes time to sprout, and it is not always given the sower to see the harvest.
I'm an incurable optimist and a go-getter - it's in my nature to focus much more on what makes me happy than what makes me nervous.
I wish that I could say I was optimistic about the human race. I love us all, but we are so stupid and shortsighted that I wonder if we can lift our eyes to the world about us long enough not to commit suicide.
The question whether I am a pessimist or an optimist, I answer that my knowledge is pessimistic, but my willing and hope are optimistic.
If I can't make it through one door, I'll go through another door- or I'll make a door. Something terrific will come no matter how dark the present.
Comedy is acting out optimism.
Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence.
I always like to look on the optimistic side of life, but I am realistic enough to know that life is a complex matter.
A man who has spent most of his adult life trying out a series of patent medicines is always an optimist.
There is still a lot to learn and there is always great stuff out there. Even mistakes can be wonderful.
Entrepreneurial business favors the open mind. It favors people whose optimism drives them to prepare for many possible futures, pretty much purely for the joy of doing so.
A likely impossibility is always preferable to an unconvincing possibility.
In optimism there is magic. In pessimism there is nothing.
A pessimist sees the difficulty in every opportunity; an optimist sees the opportunity in every difficulty.
If you pretend to be good, the world takes you very seriously. If you pretend to be bad, it doesn't. Such is the astounding stupidity of optimism.