B.

“You must learn to wait properly... By letting go of yourself, leaving yourself and everything yours behind you so decisively that nothing more is left of you but a purposeless tension”
― Eugen Herrigel, Zen in the Art of Archery

“Worrying is the one game in which, if you guess right, you don’t get any satisfaction out of your smartness. A busy man has no time to bother with it.”
― George Lorimer, Letters From A Merchant To His Son: Letters From A Self-Made Merchant To His Son Classics, Letters From A Self-Made Merchant To His Son George Horace Lorimer Illustrated and Annotated

“It's not whether you're right or wrong, but how much money you make when you're right and how much you lose when you're wrong.”
― George Soros

“Estar concentrado significa hacer en todo momento lo que sabes que tienes que hacer, no cambiar nunca tu plan, a menos que las circunstancias del peloteo o del juego cambien de un modo tan excepcional que justifiquen la aparición de una sorpresa. Pero en términos generales significa disciplina, significa contenerte cuando surge la tentación de jugártela. Luchar contra esa tentación significa tener la impaciencia o la frustración bajo control.”
― Rafael Nadal, Rafa, mi historia (Indicios no ficción)