The first man who， having fenced in a piece of land， said 'This is mine，' and found people naïve enough to believe him， that man was the true founder of civil society.

Persistence is key in mathematical research; many great results come from long struggles.

The past is always with us, for it feeds the present.

Sustainability isn't just a buzzword; it's our responsibility to future generations.

Every day is a new opportunity to change your life.

Sin is a thing that writes itself across a man’s face. It cannot be concealed.