Mathematics is the language in which the gods talk to people.

The essence of modernity is psychologism, the experiencing and interpretation of the world in terms of the reactions of our inner life and indeed as an inner world, the dissolution of fixed contents in the fluid element of the soul, from which all that is substantive is filtered and whose forms are merely forms of motion.

可持续性不仅仅是一个选择；这是我们对后代的责任。

La literatura es un espejo que nos devuelve nuestra imagen, pero también una ventana que nos permite ver más allá.

客户满意度毫无价值，客户忠诚度才是无价的。

好的计量经济学就像好的木工——关键在于为工作使用正确的工具。