"Let both sides seek to invoke the wonders of science instead of its terrors. Together let us explore the stars, conquer the deserts, eradicate disease, tap the ocean depths, and encourage the arts and commerce."
"Make friends with the angels, who though invisible are always with you. Often invoke them, constantly praise them, and make good use of their help and assistance in all your temporal and spiritual affairs."
"Those who invoke history will certainly be heard by history. And they will have to accept its verdict."
"Leaders must invoke an alchemy of great vision."