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The best time to start building the life you want is now.
Envy, it's a real taboo to mention envy, but if there's one dominant emotion in modern society, that is envy. And it's linked to the spirit of equality.
The study of mathematics is a constant dialogue between the concrete and the abstract.
I don’t run out of material. I run out of time.
The book is a mirror: if an ape looks into it, an apostle is unlikely to look out.