In my youth, Spinoza was a hobgoblin: now he is a saint. - Benedictus de Spinoza

[Alberto Knox] When things got really tough, Spinoza was even deserted by his own family. They tried to disinherit him on the grounds of his heresy. Paradoxically enough, few have spoken out more powerfully in the cause of free speech and religious tolerance than Spinoza. The opposition he was met with on all sides led him to pursue a quiet and secluded life devoted entirely to philosophy. He earned a meager living by polishing lenses, some of which have come into my possession. [...] There is almost something symbolic in the fact that he lived by polishing lenses. A philosopher must help people to see life in a new perspective. One of the pillars of Spinoza's philosophy was indeed to see things from the perspective of eternity.

Nothing forbids man to enjoy himself, save grim and gloomy superstition

Математика и опыт - вот подлинные основания достоверного, естественного, разумного живого познания.