The only limit to our realization of tomorrow is our doubts of today.

If you can look into the seeds of time, And say which grain will grow and which will not, speak then to me, who neither beg nor fear Your favours nor your hate.

Adaptability is the key to staying relevant in a fast-changing world.

The only way to do great work is to love what you do.

在距离与重量成反比的情况下，物体处于平衡状态。