Failure

Failure is not fatal.
Failure should be our teacher, nor our undertaker.
It should challenge us to new heights of accomplishments,
not pull us to new depths of despair.
From honest failure can come valuable experience. 

~William Arthur Ward~

Far better it is to dare mighty things, to win glorious triumphs,
even though checkered by failure,
than to take rank with those poor spirits who neither enjoy much nor suffer much,
because they live in the gray twilight that knows not victory nor defeat. 

~Theodore Roosevelt~

Fall seven times, stand up eight 

~Japanese proverb~