The trade-off between bias and variance is a fundamental concept in machine learning.
The future of liberal democracy depends on its ability to address the challenges of inequality and political polarization.
The most difficult challenges often present the greatest opportunities for transformation.
不在于你打得有多狠。而在于你能承受多大的打击并继续前进。
The division of labour, so far as it can be introduced, occasions, in every art, a proportionable increase of the productive powers of labour.