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The most important thing in mathematics is to have a good intuition.

The only way to understand another culture is to assume the frame of reference of that culture.

"Injustice anywhere is a threat to justice everywhere."

You are always a valuable, worthwhile human being — not because anybody says so, not because you're successful, not because you make a lot of money — but because you decide to believe it and for no other reason.

"En América Latina, la realidad siempre supera a la ficción, pero es nuestro deber intentar alcanzarla."