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The central task of education is to implant a will and facility for learning; it should produce not learned but learning people. The truly human society is a learning society, where grandparents, parents, and children are students together.

幸福是一份禮物，關鍵在于不要期待它，而是在它到來時享受它。

All earthly existence must ultimately be contained in a book.

The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is probably not important to mathematics.

解釋：有的東西外表華麗而實質不好，有的東西實質很好而外表并不華麗。

真相并不總在事實中，有時它隱藏在想象的褶皺里。