“Science is about knowing engineering is about doing.”— Henry Petroski Related Quotes “There are philosophies which are unendurable not because men are cowards but because they are men.”— Ludwig Lewisohn “Life is a daring curiosity.”— Lailah Gifty Akita “If the world were merely seductive that would be easy. If it were merely challenging that would be no problem. But I rise in the morning torn between a desire to improve (or save) the world and a desire to enjoy (or savour) the world. This makes it hard to plan the day.”— E. B. White