Tiago Marques

“The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.”
― Ralph Waldo Emerson

“Do not confuse "duty" with what other people expect of you; they are utterly different. Duty is a debt you owe to yourself to fulfill obligations you have assumed voluntarily. Paying that debt can entail anything from years of patient work to instant willingness to die. Difficult it may be, but the reward is self-respect.
But there is no reward at all for doing what other people expect of you, and to do so is not merely difficult, but impossible. It is easier to deal with a footpad than it is with the leech who wants "just a few minutes of your time, please—this won't take long." Time is your total capital, and the minutes of your life are painfully few. If you allow yourself to fall into the vice of agreeing to such requests, they quickly snowball to the point where these parasites will use up 100 percent of your time—and squawk for more!
So learn to say No—and to be rude about it when necessary. Otherwise you will not have time to carry out your duty, or to do your own work, and certainly no time for love and happiness. The termites will nibble away your life and leave none of it for you.
(This rule does not mean that you must not do a favor for a friend, or even a stranger. But let the choice be yours. Don't do it because it is "expected" of you.)”
― Robert A. Heinlein, Time Enough for Love

“The same thing happened to me that, according to legend, happened to Parmeniscus, who in the Trophonean cave lost the ability to laugh but acquired it again on the island of Delos upon seeing a shapeless block that was said to be the image of the goddess Leto. When I was very young, I forgot in the Trophonean cave how to laugh; when I became an adult, when I opened my eyes and saw actuality, then I started to laugh and have never stopped laughing since that time. I saw that the meaning of life was to make a living, its goal to be- come a councilor, that the rich delight oflove was to acquire a well-to-do girl, that the blessedness of friendship was to help each other in financial difficulties, that wisdom was whatever the majority assumed it to be, that enthusiasm was to give a speech, that courage was to risk being fined ten dollars, that cordiality was to say "May it do you good" after a meal, that piety was to go to communion once a year. This I saw, and I laughed.”
― Søren Kierkegaard, Either/Or: A Fragment of Life

“When I have a little money, I buy books; and if I have any left, I buy food and clothes.”
― Desiderius Erasmus Roterodamus