The good life is one inspired by love and guided by knowledge. — Bertrand Russell

In friendship as well as love, ignorance very often contributes more to our happiness than knowledge. — Francois de La Rochefoucauld
Only on paper has humanity yet achieved glory, beauty, truth, knowledge, virtue, and abiding love. — George Bernard Shaw
The man of knowledge must be able not only to love his enemies but also to hate his friends. — Friedrich Nietzsche
Man needs, for his happiness, not only the enjoyment of this or that, but hope and enterprise and change. — Bertrand Russell
To fear love is to fear life, and those who fear life are already three parts dead. — Bertrand Russell
Italy, and the spring and first love all together should suffice to make the gloomiest person happy. — Bertrand Russell