Life does not, cannot, go on by hope alone. Even though hope is a great sustainer and energizer of human life.
Without hope, human life will sputter and die in short order.
What life needs, what we all need, what the whole world needs, in addition to hope — and optimism — is action: sustained, accountable, targeted action.
To be successful in life, we must find a way to marry eternal and undying hope to sustained, robust and accountable action.
You do that, and you have got a pretty firm handle on Islam.
For, Islam is all about hope married to goal-directed, accountable, action.