Said in november 1936 during the summary trial in which he was condemned to death.
Source: http://www.abc.es/20081104/opinion-firmas/mataron-munoz-seca-20081104.html
“You can take away all of my money…
You can seize my material belongings…
You can try to keep me down…
But you can never take my Spirit…”
Related quotes

TIME Magazine (21. May 1928) http://www.time.com/time/magazine/article/0,9171,731797,00.html
“If my love can hold you, I'll keep you with me.”
Source: Devil in Winter

SM Lee Kuan Yew, The Man and His Ideas, 1997 http://books.google.com/books?id=ljOkLtGgIQYC&dq=Supposing+Catherine+Lim+was+writing+about+me+and+not+the+prime+minister..&source=gbs_navlinks_s
1990s
“Ability can take you to the top, but it takes character to keep you there”
“You can drag my body to school but my spirit refuses to go.”
Source: The Essential Calvin and Hobbes

"A todos ellos les digo que los llevo en mi corazón, que no bajaré los brazos y que pueden tener la absoluta seguridad que no abandonaré la lucha política, que ha sido y es la razón de mi vida."
From a message broadcast on May 14th, in which he explains the reasons of his resign from participating on the May 18th ballotage