Mothers are fonder than fathers of their children because they are more certain they are their own. Aristotle
While I sleep, I dream of you, and when I wake, I long to hold you in my arms. If anything, our time apart has only made me more certain that I want to spend my nights by your side, and my days with your heart. Nicholas Sparks
The further the spiritual evolution of mankind advances, the more certain it seems to me that the path to genuine religiosity does not lie through the fear of life, and the fear of death, and blind faith, but through striving after rational knowledge. Albert Einstein
You cannot imagine a more certain rule or a more powerful suggestion than this, that all the blessings we enjoy are divine deposits which we have received on this condition that we distribute them to others. John Calvin
The less respect an older person deserves the more certain he is to demand it from anyone younger. Robert A. Heinlein