In an attempt to provide a firm foundation for knowledge, he began his Meditations by clearing the philosophical ground through doubting all that could be doubted.

在试图为知识建立坚实基础的尝试中，他开始通过怀疑一切能被怀疑的对象来理清哲学立场，以这样的方式开始了《第一哲学沉思录》的创作。

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As the case heads toward appeals at the circuit level and probably the Supreme Court, judge Walker's opinion will provide a firm legal foundation that will be difficult for appellate judges to assail.

虽然案件极有可能上诉至巡回法院乃至最高法院，但Walker法理严实的判决意见，将会令上诉庭法官难以反驳。

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And our strategy here at MTB Investment Advisors is very much oriented towards looking for companies with superior business models that provide a firm foundation for long-term, sustainable growth.

FORBES: 2 Mid-Caps for Long-Term Growth