Difficulties strengthen the mind, as labor does the body.
Rome
It is not the man who has too little who is poor, but the one who hankers after more.
Through hardship to the stars.
Men who have made these discoveries before us are not our masters, but our guides.
That which does not kill us makes us stronger.
Man needs difficulties; they are necessary for health.
Kites rise highest against the wind, not with it.
