Life may be seen through many windows, none of them necessarily clear or opaque, less or more distorting than any of the others.

Few new truths have ever won their way against the resistance of established ideas save by being overstated.

True knowledge is knowledge of why things are as they are, and not merely what they are.

When one is engaged in a desperate defense of one's world and its values, nothing can be given away, any breach in the walls might be fatal, every point must be defended to the death.

Both liberty and equality are among the primary goals pursued by human beings throughout many centuries; but total liberty for wolves is death to the lambs, total liberty of the powerful, the gifted, is not compatible with the rights to a decent existence of the weak and the less gifted.

The intellectual power, honesty, lucidity, courage, and disinterested love of the truth of the most gifted thinkers of the eighteenth century remain to this day without parallel. Their age is one of the best and most hopeful episodes in the life of mankind.

To understand is to perceive patterns.