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笛卡儿

笛卡兒
Díkǎ'ér
popculture

Meanings

  1. 1 René Descartes (1596–1650)
  2. 2 French philosopher, mathematician and scientist

Examples

笛卡儿说"我思故我在"。
Díkǎ'ér shuō "wǒ sī gù wǒ zài".
Descartes said, 'I think, therefore I am.'
笛卡儿坐标系是中学数学的基础。
Díkǎ'ér zuòbiāoxì shì zhōngxué shùxué de jīchǔ.
The Cartesian coordinate system is fundamental to high-school mathematics.

Tips

history
Descartes founded analytic geometry by linking algebra and geometry through the coordinate plane that now bears his name (笛卡儿坐标系). His 1637 'Discourse on the Method' opened modern Western philosophy.

In Pop Culture

我思故我在 wǒ sī gù wǒ zài
I think, therefore I am
Descartes' most famous line — Latin 'Cogito, ergo sum' — anchoring the existence of the self in the act of thinking.

Stroke Order

笛 dí
卡 kǎ
儿 ér