If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.
The longer I live the more I see that I am never wrong about anything, and that all the pains I have so humbly taken to verify my notions have only wasted my time.
现代世界让我们自由，但也让我们痛苦。
You pray for rain, you gotta deal with the mud too. That's a part of it.
以真诚之心待人接物。
The human heart is the most deceitful of all things, and desperately wicked. Who really knows how bad it is?