Continuous effort - not strength or intelligence - is the key to unlocking our potential.

Strength does not come from winning. Your struggles develop your strengths. When you go through hardships and decide not to surrender, that is strength.

I love those who can smile in trouble, who can gather strength from distress, and grow brave by reflection. 'Tis the business of little minds to shrink, but they whose heart is firm, and whose conscience approves their conduct, will pursue their principles unto death.

Out of suffering have emerged the strongest souls the most massive characters are seared with scars.

Only one who devotes himself to a cause with his whole strength and soul can be a true master. For this reason mastery demands all of a person.