Few cases of eyestrain have been developed by looking on the bright side of things.

Few cases of eyestrain have been developed by looking on the bright side of things.

For myself I am an optimist--it does not seem to be much use being anything else.

For myself I am an optimist--it does not seem to be much use being anything else.

When it is dark enough, you can see the stars.

When it is dark enough, you can see the stars.

Be an optimist -- at least until they start moving animals in pairs to Cape Canaveral.

Be an optimist -- at least until they start moving animals in pairs to Cape Canaveral.

The only limit to our realization of tomorrow will be our doubts of today.

The only limit to our realization of tomorrow will be our doubts of today.

Having a positive mental attitude is asking how something can be done rather than saying it can't be done.

Having a positive mental attitude is asking how something can be done rather than saying it can't be done.

The basis for optimism is sheer terror.

The basis for optimism is sheer terror.

The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.

The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.

In these times you have to be an optimist to open your eyes in the morning.

In these times you have to be an optimist to open your eyes in the morning.