Little minds have little worries; big minds have no time for worries.
When nature has work to be done, she creates a genius to do it.
We don’t count a man’s years, until he has nothing else to count.
Science does not know its debt to imagination.
Happy is the hearing man; unhappy the speaking man.
Write it on your heart that every day is the best day in the year.
The faith that stands on authority is not faith.
Nature is a mutable cloud which is always and never the same.
For every minute you are angry you lose sixty seconds of happiness.
Great geniuses have the shortest biographies.
