不以规矩，无以成方圆！
《孟子》
差以毫厘，谬以千里！
《汉书》
不登高山，不知天之高也，不临深溪，不知地之厚也！
《荀子》
Problems are not stop signs, they are guidelines.
By Robert Schuller (1926-2015), American televangelist, pastor, and author known around the world through his weekly hour of power television broadcast.
Each success only buys an admission ticket to a more difficult problem.
By Henry Kissinger (1923- ), Former United States Secretary of State and Winner of the Nobel Peace Prize, he played a dominant role in foreign affairs between 1969 and 1977.
Life’s challenges are not supposed to paralyze you,they’re supposed to help you discover who you are.
By Bernice Johnson Reagon (1942- ), singer, composer, scholar, and social activist,who founded the a cappella ensemble sweet Honey in the rock in 1973.
I want to stay as close to the edge as I can without going over. Out on the edge you see all kinds of things you can’t see from the center.
By Kurt Vonnegut (1922-2007), American novelist known for works blending satire, black comedy and science fiction.
Give yourself an even greater challenge than the one you are trying to master and you will develop the powers necessary to overcome the original difficulty.
By William Bennett (1943- ), American conservative pundit, politician, and political theorist.
From what we get, we can make a living; what we give, however, makes a life.
By Arthur Ashe (1943-1993), a prominent African American Tennis player who was born and raised in Richmond, Virginia, USA. He is well remembered for his efforts to further social causes.
Today a new sun rises for me; everything lives, everything is animated, everything seems to speak to me of my passion, everything invites me to cherish it.
By Ninon de l’Enclos (1620-1705), French author, courtesan and patron of the arts.
In these times you have to be an optimist to open your eyes when you awake in the morning.
By Carl Sandburg (1878-1967), American poet, historian, novelist, and folklorist. Much of his poetry focused on Chicago, Illinois, where he spent time as a reporter for the Chicago Daily News.
