If you shut your door to all errors truth will be shut out.
如果你把所有的失误都关在门外，真理也将被关在门外了。
心灵的主要任务是为行动组织经验。
If it doesn't challenge you, it won't change you.
When we quarry with future generations in mind, stone becomes a bridge, not just a resource.
"You have to put in the hours because there’s always something which you can improve."
有时我们测量事物，看到它们在短期内实际上会损害销售，我们仍然会这样做。