The key to all sciences is unquestionably the question mark. To the word How? we owe most of our greatest discoveries. Wisdom in life may perhaps consist in asking ourselves on all occasions: Why?
Honore de BalzacIs there any instinct more deeply implanted in the heart of man than the pride of protection, a protection which is constantly exerted for a fragile and defenceless creature?
Honore de Balzac