Four great quotes and proverbs

1.Trend is not destiny.-U.S. social critic Lewis Mumford
2.One always knocks oneself on the sore place.-French proverb
3.Suffering often feels like failure,but it is actually the door into growth.-U.S. poet and journalist May Sarton,JOURNAL OF SOLITUDE
4.Pleasure is very seldom found where it is sought;our brightest blazes of gladness are commonly kindled by unexpected sparks.-British lexicographer Samuel Johnson(1709-84) in THE IDLER