A pessimist sees the difficulty
in every opportunity;
an optimist sees the opportunity
in every difficulty.
It is better to be prepared for an opportunity
and not have one than to have an opportunity
and not be prepared.
Luck is what happens
when preparation meets opportunity.
Every exit is an entry somewhere.
He who refuses to embrace
a unique opportunity
loses the prize
as surely as if he had failed.
When one door closes
another door opens;
but we so often look so long
and so regretfully
upon the closed door,
that we do not see the ones
which open for us.