The longer mankind exists, the more liberated it becomes from prejudice and the more clearly it perceives the law of life.
Ours is the age of criticism. Religion and law try to escape from criticism, religion by saying that it is divine and law by showing that it is powerful. But some suspicions arise from this escape, because we can respect only those things which stand up in free and public trial.
— Immanuel Kant
Study everything, and put intellect first.
Do not be afraid of the way your intellect calls into question old stories and legends. The pure intellect cannot destroy anything without replacing it with the truth: this is one of its essential qualities.