The PAC learning framework provides a formal way to quantify the learnability of a concept class.
Man is not the creature of circumstances; circumstances are the creatures of men.
故事是一种心灵感应。通过在纸上涂写符号,她能够将思想和感情从她的心灵传送到读者的心灵。
"Life is what happens when you're busy making other plans."
The integration of traditional farming methods with modern technology is key to success.