It is indeed an opinion strangely prevailing amongst men， that houses， mountains， rivers， and in a word all sensible objects， have an existence， natural or real， distinct from their being perceived by the understanding.

The only way to discover the limits of the possible is to go beyond them into the impossible.

Order and simplification are the first steps toward the mastery of a subject.

The past must be respected, but not copied.

The more you give, the more you get.

幸福者的世界与不幸者的世界是完全不同的。