You cannot eat your cake and have your cake.

We must not stand upon trifles.

One day, in the San Francisco walk, he came upon some badly painted figures and observed that good painters imitate nature but bad ones vomit it forth.

When thou art at Rome, do as they do at Rome.

Sorrow was made for man, not for beasts; yet if men encourage melancholy too much, they become no better than beasts.

Don Quixote followed nature, and being satisfied with his first sleep, did not solicit more. As for Sancho, he never wanted a second, for the first lasted him from night to morning, indicating a sound body and a mind free from care; but his master, being unable to sleep himself awakened him, saying, "I am amazed, Sancho, at the torpor of thy soul; it seems as if thou wert made of marble or brass, insensible of emotion or sentiment!

When God sends the dawn, he sends it for all.