Quote by Sean O'Casey

"All the world's a stage, and all the men and women merely players."

"The holy passion of friendship is of so sweet and steady and loyal and enduring a nature that it will last through a whole lifetime."

"Life is a wonderful thing if you don't weaken."

"There is no abiding success without commitment."

"Science helps us understand the world."

"I've witnessed the birth of science, and it continues to amaze me."

"I'm something of a scientist myself."

"The fusion process is self-sustaining now!"