...[T]o be unfaithful to my maxim of prudence may often be very advantageous to me, although to abide by it is certainly safer.

...[H]uman reason in its pure use, so long as it was not critically examined, has first tried all possible wrong ways before it succeeded in finding the one true way.

...[P]hysics... [is] the philosophy of nature, so far as it is based on empirical laws.

...[F]reedom... is a property of all rational beings.

...I am never to act otherwise than so that I could also will that my maxim should become universal law.

The will is conceived as a faculty of determining oneself to action in accordance with the conception of certain laws. And such a faculty can be found only in rational beings.

Think continally about what you want, not about the things you fear.

Why are people afraid of getting older? You feel wiser. You feel more mature. You feel like you know yourself better. You would trade that for softer skin? Not me!

I look back at the past as fond memories but I'm able to move forwards in a new light, like I'm reborn.

I actually do think the history is so epic that it actually kind of writes itself.

In Spain, the dead are more alive than the dead of any other country in the world.

Why do 'slow down' and 'slow up' mean the same thing? Why is the third hand on the watch called the second hand?

Mature love is loving, not being loved.

Having a perilous adventure is always better than comatose safety. Always, always, always, always, always.

It's my opinion that a manager must have the right to manage and that clubs should not impose upon any manager any player that he does not want. I have been left with no choice other than to leave.

I can never say 'why' about anything I do. I suppose I can say 'how' and 'when' and 'what.' But 'why' is impenetrable to me.