Islamic quotes:

Slay them wherever you find them. Drive them out of the places from which they drove you. Idolatry is worse than carnage.

Prophet, make war on the unbelievers and the hypocrites and deal rigorously with them. Hell shall be their home: an evil fate.

We arrange unhappy events among mankind so that God may test the true believers and select some of you to become martyrs. He does not love the evil doers. He will test the faithful and will annihilate the infidels

Did you really believe that you would enter paradise before God tested your commitment to fight for him and to endure suffering with fortitude? God loves the steadfast.

"Be content with what Allaah has given you, and you will be the richest of people."

Slay the Idolaters wherever you find them. Seize them, surround them and everywhere lie in ambush for them. But if they repent from their wrong beliefs and establish regular prayers and pay Zakah, then spare their lives. God is Oft-Forgiving and Ever Merciful.

"If you should die or be slain in the cause of God, His forgiveness and His mercy would surely be better than all the riches..."

"Muhammad is God's apostle. Those who follow him are ruthless to the unbelievers but merciful to one another."

I like these best:

Have no fear of man. Fear me.

"Make war on them until idolatry shall cease and God's religion shall reign supreme."

"Fighting is obligatory for you, much as you dislike it."

"Fight for the cause of God with the devotion due to Him...He has given you the name of Muslims..."

God creates you weak. After weakness he gives you strength.

Fight for the sake of God those that fight against you, but do not attack them first. God does not love the aggressors.

-Skel-