Two things fill the mind with ever-increasing wonder and awe, the more often and the more intensely the mind of thought is drawn to them: the starry heavens above me and the moral law within me.
Law and freedom without violence are incompatible. Violence and law without freedom are also incompatible
Morality is not the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.
Morality is not properly the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.
In law a man is guilty when he violates the rights of others. In ethics he is guilty if he only thinks of doing so.
All thought must, directly or indirectly, by way of certain characters, relate ultimately to intuitions, and therefore, with us, to sensibility, because in no other way can an object be given to us.
Act so that you treat humanity, whether in your own person or in that of another, always as an end and never as a means only.
A categorical imperative would be one which represented an action as objectively necessary in itself, without reference to any other purpose.
Seek not the favor of the multitude; it is seldom got by honest and lawful means. But seek the testimony of few; and number not voices, but weigh them.
He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.
Act only according to that maxim whereby you can at the same time will that it should become a universal law.
Morality is not the doctrine of how we may make ourselves happy, but of how we may make ourselves worthy of happiness.
All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.
Act in such a way that you treat humanity, whether in your own person or in the person of any other, never merely as a means to an end, but always at the same time as an end.
Theo luật pháp, một người có tội khi vi phạm quyền lợi của người khác. Nhưng về mặt đạo đức, mới chỉ nghĩ đến hành động như thế cũng đã là có tội.
Con ruồi chết vì giọt mật. Đàn bà chết vì đàn ông nhiều lời. Đàn ông chết vì vợ đẹp. Cha mẹ thì chết vì con bất hiếu