If you do not think about the future, you cannot have one. John Galsworthy
Do not think about or do anything without a spiritual purpose, whereby it is done for God. For If you travel without purpose, you shall labor in vain. Marcus Eremita
A child who does not think about what happens around him and is content with living without wondering whether he lives honestly is like a man who lives from a scoundrel's work and is on the road to being a scoundrel. José Martí
Do not think about sin, he thought. There are enough problems now without sin. Also I have no understanding of it. Ernest Hemingway
The duty of the artist is not to be calculating in any sense, so that he may be free himself of human emotions while carried by the universal forces of life. Only then does one not think about making art, or about styles, or directions. Something comes about, something happens. Karel Appel
One should not think about it too much when marrying or taking pills. Dutch Proverb