Most men are more willing to indulge in easy vices than to practise laborious virtues. — Samuel Johnson
Writing long books is a laborious and impoverishing act of foolishness: expanding — Jorge Luis Borges
The process of learning should be as far as possible a pleasurable one and not laborious — Mahatma Gandhi
Thought is not a gift to man but a laborious, precarious and volatile acquisition. — Jose Ortega y Gasset