fly too close to the sun

Etymology
In reference to the Greek myth of Icarus, who fell into the sea and drowned after flying too close to the sun on wings made of wax and feathers, despite having been warned by his father, Daedalus, who gave him the wings.

Verb

 * 1)  To become overly ambitious or greedy; to overreach oneself; to reach for something unattainable or unachievable.

Translations

 * Finnish: kurkottaa kuuseen ; lentää liian lähelle aurinkoa
 * French: se brûler les ailes
 * Polish: zachowywać się zbyt pewnie siebie